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Electric Field Solutions Library

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99 solutions

Electric Field

Q. In the figure the four particles are fixed in place and have charges q1  = q2 = 3e, q3 = 2e and q4 = -9e. Distance d = 2.17 µm. What is the magnitu...

Solved • Mar 30, 2021

Electric Field

Q. (a) If the total positive charge is Q = .62x10-6 C, what is the magnitude of the electric field caused by this charge at point P, a distance d=1.53...

Solved • Mar 30, 2021

Electric Field

Q. The electric field of a point charge is inversely proportional toa. r1/2b. rc. r2d. r3

Solved • Mar 30, 2021

Electric Field

Q. A 30 nC charge experiences a 0.035 N electric force. What is the magnitude of electric field at the position of this charge?

Solved • Mar 30, 2021

Electric Field

Q. At which point is the electric field stronger?A. Point AB. Point BC. Not enough information to tell

Solved • Mar 30, 2021

Electric Field

Q. 1. What is the magnitude of the electric field at point P?2. What is the voltage at point P? (As always when dealing with point charges, we assume ...

Solved • Mar 30, 2021

Electric Field

Q. Two point charges are separated by 25.0 cm (see the figure (Figure 1) ). Assume that q1 = 6.05 nC and q2 = 11.5 nC.A. Find the magnitude of the net...

Solved • Feb 26, 2021

Electric Field

Q. Three positive point charges (Figure 1) are spaced equally along the y axis (), = 5.00 at , = 5.00 at , and = 5.00at . Find the x and y components ...

Solved • Feb 11, 2021

Electric Field

Q. For a uniformly charged solid sphere, the relationship between electric field strength and distance from the center isa. inverse.b. quadratic.c. li...

Solved • Feb 10, 2021

Electric Field

Q. Gauss’ Law is a more general law than Coulomb’s Lawa. Trueb. False

Solved • Feb 10, 2021

Electric Field

Q. A relatively safe place to be during a lightning storm is inside a car, surrounded by metala. Trueb. False

Solved • Feb 10, 2021

Electric Field

Q. The electric field is always parallel to the surface outside of a conductor.a. Trueb. False

Solved • Feb 10, 2021

Electric Field

Q. Charges -q and +2q in the figure are located at x=+-a.  Determine the electric field at points 1 to 4. Write each field in component form.

Solved • Feb 10, 2021

Electric Field

Q. 1) What is the electric field at point 1 in (Figure 1)? Assume that a= 3.0 cm and b = 4.0 cm.2) What is the electric field at point 2 in (Figure 1)...

Solved • Feb 9, 2021

Electric Field

Q. A positive charge is located at the center of a cube. a. Are the intersections of the field lines with a side of the box uniformly distributed acro...

Solved • Feb 9, 2021

Electric Field

Q. This problem has been solved!See the answerA -2.0 nC charge and a +2.0 nC charge are located on the x-axis at x = -1.0 cm and x = +1.0 cm, respecti...

Solved • Feb 8, 2021

Electric Field

Q. A thin, horizontal, 20-cm-diameter copper plate is charged to 4.0 nC . Assume that the electrons are uniformly distributed on the surfacea) What is...

Solved • Feb 3, 2021

Electric Field

Q. A platypus foraging for prey can detect an electric field as small as 0.002 N/C To give an idea of the sensitivity of the platypus's electric sense...

Solved • Feb 2, 2021

Electric Field

Q. Point charges of 0.27 μC and 0.71 μC are placed 0.45 m apart.a. At what point along the line between them is the electric field zero? Give your ans...

Solved • Jan 27, 2021

Electric Field

Q. Point charges of 25.0 µC and 45.0 µC are placed 0.500 m apart. (a) At what point along the line between them is the electric field zero?(b) What is...

Solved • Jan 27, 2021

Electric Field

Q. Charge is distributed uniformly along a long straight wire. The electric field 2 cm from the wire is 20 N/C. The electric field 4 cm from the wire is?

Solved • Jan 27, 2021

Electric Field

Q. Four charges are situated as shown in the diagram (each grid line is separated by 1 meter). The two upper charges have a charge of +2 μC (+2×10-6 C...

Solved • Jan 21, 2021

Electric Field

Q. Four point charges of equal magnitude are arranged at the corners of a square as shown in the figure. Positive charges are indicated by "+" and neg...

Solved • Jan 21, 2021

Electric Field

Q. If a negative charge is released in a uniform electric field, it will moveA.  in circular motion. B. in the direction of the electric field. C. in ...

Solved • Jan 17, 2021

Electric Field

Q. A very long uniform line of charge has a charge per unit length 4.84 μC/m and lies along the x-axis. A second long uniform line of charge has a cha...

Solved • Jan 13, 2021

Electric Field

Q. A -12 nC charge is located at (x,y) = (1.0cm, 0cm). What are the electric fields at the positions (x,y) = (5.0cm, 0cm), (-5.0cm, 0cm), and (0 cm, 5...

Solved • Jan 8, 2021

Electric Field

Q. Two pairs of charges are shown in (Figure 1)Part A. At which point or points is the electric field zero in (Figure 1)(a)?Part B. At which point or ...

Solved • Dec 16, 2020

Electric Field

Q. Electric fields exist ____________.a. only as an abstractionb. only inside conductorsc. at all points in space around chargesd. only at points in s...

Solved • Nov 3, 2020

Electric Field

Q. A +2.00 nC point charge is at the origin, and a second -5.00 nC point charge is on the x-axis at x = 0.800 m. (a) Find the magnitude of the electri...

Solved • Nov 3, 2020

Electric Field

Q. A point charge is placed at each comer of a square with side length a. The charges all have the same magnitude q. Two of the charges are positive a...

Solved • Nov 3, 2020

Electric Field

Q. When a car is struck by lightning, the resulting electric field inside the car is

Solved • Nov 2, 2020

Electric Field

Q. The electric field direction is defined by the direction of the force felt by (select one of the following answers):a. A negative charge.b. A posit...

Solved • Oct 13, 2020

Electric Field

Q. Two point charges are placed on the x axis. The first charge, q1 = 8.00 nC, is placed a distance 16.0 m from the origin along the positive x-axis; ...

Solved • Sep 22, 2020

Electric Field

Q. A point charge q1 = -4.00 nC is at the point x = 0.600 meters, y = 0.800 meters, and a second point charge q2 = +6.00 nC is at the point x = 0.600 ...

Solved • Sep 22, 2020

Electric Field

Q. Part ASpecify the strength of the electric field at the point indicated by the dot. Let r = 6.5 cm.Part BSpecify the direction. 

Solved • Jul 20, 2020

Electric Field

Q. A proton is placed in a uniform electric field of 2950 N/C.A. Calculate the magnitude of the electric force felt by the proton.(F = ? )B. Calculate...

Solved • Jul 17, 2020

Electric Field

Q. Two positive point charges q are placed on the x-axis, one at x = a and one at x = -a.(a) Find the magnitude and direction of the electric field at...

Solved • Jul 16, 2020

Electric Field

Q. In the figure, the point charges are located at the corners of an equilateral triangle 26 cm on a side.Find the magnitude of the electric field, in...

Solved • Jul 16, 2020

Electric Field

Q. In the figure, the point charges are located at the corners of an equilateral triangle 21 cm on a side. Part (a) Find the magnitude of the electric...

Solved • Jul 16, 2020

Electric Field

Q. Figure 17.44 shows an electron passing between two charged metal plates that create an 100 N/C vertical electric field perpendicular to the electro...

Solved • Jul 16, 2020

Electric Field

Q. Part AWhat is the direction of the electric field at the dot in the figure (Figure 1)? A) down B) up C) to the right D) to the left Part B What is ...

Solved • Jul 16, 2020

Electric Field

Q. Two very large sheets of charge are separated by a distance d. One sheet +o, -O has a surface charge density +o; the other, a surface charge densit...

Solved • Jul 16, 2020

Electric Field

Q. Select the correct graph of Ex versus x.  a.b.c.  d.

Solved • Jul 14, 2020

Electric Field

Q. Is there a point between a 10 nC charge and a 20 nC charge at which the electric field is zero? If so, which charge is this closer to?

Solved • Jul 14, 2020

Electric Field

Q. In the figure, two curved plastic rods, one of charge +q and the other of charge -q, form a circle of radius R = 8.58 cm in an xy plane. The x-axis...

Solved • Jul 14, 2020

Electric Field

Q. The electric field outside of a uniformly charged sphere is most like aSelect one:a. ring of chargeb. point chargec. disk of charged. parallel plat...

Solved • Jul 14, 2020

Electric Field

Q. The potential difference across a length of wire is increased. Which of the following does not increase as well?A. The electric field in the wire.B...

Solved • Jul 13, 2020

Electric Field

Q. A 0.10 g honeybee acquires a charge of +23 pC while flying.a. The electric field near the surface of the earth is typically 100 N/C, directed downw...

Solved • Jul 13, 2020

Electric Field

Q. The figure (Figure 1) shows a solid metal sphere at the center of a hollow metal sphere. Assume that E = 1.3x104 N/C1) What is the total charge on ...

Solved • Jul 13, 2020

Electric Field

Q. Two point charges (q1 = -4.7 µC and q2 = 8.4 µC) are fixed along the x-axis, separated by a distance d = 8.1 cm. Point P is located at (x,y) = (d,d...

Solved • Jul 13, 2020

Electric Field

Q. A free negative charge released in an electric field willa) remain at rest.b) accelerate in a direction perpendicular to the electric field.c) acce...

Solved • Jul 1, 2020

Electric Field

Q. What can you say about the field at point 1 compared with the field at point 2?a. The field at point 1 is zero, because point 1 is not on a field l...

Solved • Jul 1, 2020

Electric Field

Q. What are the strength and direction of the electric field at the position indicated by the dot in figure (Figure 1)A) Give your answer in terms of ...

Solved • Jul 1, 2020

Electric Field

Q. Three negative point charges lie along a line as shown in the figure. Find the magnitude of the electric field this combination of charges produces...

Solved • May 21, 2020

Electric Field

Q. The figure (Figure 1) shows a thin rod of length L with total charge Q. Find an expression for the electric field E at distance X from the end of t...

Solved • May 19, 2020

Electric Field

Q. (a) Find the direction and magnitude of an electric field that exerts a 4.80x10-17 N westward force on an electron. (b) What magnitude and directio...

Solved • May 19, 2020

Electric Field

Q. Finding the Zero-Field PointTwo particles with positive charges q1 and q2 are separated by a distance s.Along the line connecting the two charges, ...

Solved • May 13, 2020

Electric Field

Q. In the figure, the point charges are located at the corners of an equilateral triangle 22 cm on a side.A.) Find the magnitude of the electric field...

Solved • May 13, 2020

Electric Field

Q. What is the direction of the electric field at the dot?

Solved • May 11, 2020

Electric Field

Q. What are the magnitude and direction of the electric field at the dot in Figure below, in which d = 5 cm and theta = 47°?in units of V/m (degree me...

Solved • May 11, 2020

Electric Field

Q. What magnitude charge creates a 1.0 N/C electric field at a point 1.0 m away?

Solved • Apr 20, 2020

Electric Field

Q. A +16 nC charge is located at the origin.a. What is the strength of the electric field at the position (x,y)=(5.0cm, 0cm)?b. What is the strength o...

Solved • Apr 10, 2020

Electric Field

Q. 1. In which case does the electric field at the dot have the largest magnitude? A, B, C, or D2. Three point charges are arranged as shown in the fi...

Solved • Apr 9, 2020

Electric Field

Q. A proton is released from rest at the positive plate of a parallel-plate capacitor. It crosses the capacitor and reaches the negative plate with a ...

Solved • Apr 8, 2020

Electric Field

Q. An electron is projected with an initial speed 1.20×106 m/s into the uniform field between the parallel plates in the figure. Assume that the field...

Solved • Apr 8, 2020

Electric Field

Q. Find the electric field at the origin, point O. Give the x and y components of the electric field as an ordered pair. Express your answer in newton...

Solved • Apr 7, 2020

Electric Field

Q. A force of 10 N acts on a charge of 5.0 μC when it is placed in a uniform electric field. What is the magnitude of this electric field?A) 1.0 MN/C ...

Solved • Apr 3, 2020

Electric Field

Q. Two point charges are placed on the x-axis. The first charge, q1 = 8.00 nC, is placed a distance 16.0 m from the origin along the positive x-axis; ...

Solved • Mar 24, 2020

Electric Field

Q. A point charge q1 = -4.00 nC is at the point x = 0.600 meters, y = 0.800 meters, and a second point charge q2 = +6.00 nC is at the point x = 0.600 ...

Solved • Mar 24, 2020

Electric Field

Q. Figure 18.57 shows an electron passing between two charged metal plates that create an 100 N/C vertical electric field perpendicular to the electro...

Solved • Mar 11, 2020

Electric Field

Q. (a) What is the strength of the electric field at the position indicated by the dot in the figure?(b) What is the direction of the electric field a...

Solved • Mar 10, 2020

Electric Field

Q. In the figure, point A is a distance L away from a point charge Q. Point B is a distance 4L away from Q. What is the ratio of the electric field at...

Solved • Jun 20, 2017

Electric Field

Q. Five particles are shot from the left into a region that contains a uniform electric field. The numbered lines show the paths taken by the five par...

Solved • Jun 18, 2017

Electric Field

Q. An electron traveling at 2 × 106 m/s enters a 0.08 m region with a uniform electric field of 246 N/C , as in the figure. A) Find the magnitude of ...

Solved • Jun 16, 2017

Electric Field

Q. An electron is accelerated by a constant electric field of magnitude 208 N/C. A) Find the magnitude of the acceleration of the electron. The mass ...

Solved • Jun 16, 2017

Electric Field

Q. Three point charges are placed at the vertices of an equilateral triangle. Find the magnitude of the electric field E at P. The value of the Coulom...

Solved • Jun 16, 2017

Electric Field

Q. Three charges are arranged along the x-axis: +q at x = -2d; +2q at x = d; –4q at x = 2d. Which expression gives the magnitude of the electric field...

Solved • May 30, 2017

Electric Field

Q. Two unequal point charges are separated as shown in the figure. The electric field due to this combination of charges can be zero. a) Only in regi...

Solved • May 30, 2017

Electric Field

Q. Two point charges are separated by 20 cm and have charges of +8.0 and +16.0 μC, respectively. What is the electric field at a point midway between ...

Solved • May 29, 2017

Electric Field

Q. In the four configurations of charges, all the charges are the same magniture, Q, but can be positive or negative. The distance between adjacent it...

Solved • Apr 27, 2017

Electric Field

Q. A charge q1 = +5.0 x 10-9 C is located at the origin of an xy-coordinate system, and a charge q2 = -2.0 x 10-9 c is located on the y-axis at y = 0....

Solved • Feb 21, 2017

Electric Field

Q. An electron traveling along the +x-axis enters an electric field that is directed vertically down, i.e. along the negative y-axis. What will be the...

Solved • Feb 21, 2017

Electric Field

Q. The figure shows two unequal point charges, q and Q, of opposite sign. Charge Q has greater magnitude than charge q. In which of the regions X, Y, ...

Solved • Jan 4, 2017

Electric Field

Q. An electron traveling horizontally at 6 × 10 6 m/s enters a 0.05 m region with a uniform electric field of 89 N/C , perpendicular to the electron's...

Solved • Jan 3, 2017

Electric Field

Q. A charge of 3 μC is at the origin. Sketch the function E x versus x for both positive and negative values of x. (Remember that Ex is negative when ...

Solved • Jan 3, 2017

Electric Field

Q. A charge of 3 μC is at the origin. The Coulomb constant is 8.98755 × 10  9 Nm2/C2. What is the magnitude of the electric field on the x axis at x =...

Solved • Jan 3, 2017

Electric Field

Q. Two charged particles are located at x = -a and x = +a, as shown below, on the x-axis. The electric field produced by these two charges at any poin...

Solved • Dec 27, 2016

Electric Field

Q. A pendulum has a charged mass at the end of it, as shown in the figure below. If it is in equilibrium, what is the magnitude of the electric field?

Solved • Dec 22, 2016

Electric Field

Q. Two charges, q1 = 5 μC  and q 2 = 7 μC, are separated by 10 cm, with q 1 to the left of q2. Where is the net electric field, due to both charges, z...

Solved • Dec 22, 2016

Electric Field

Q. Two charges, q1 = -2.50 nC and q 2 = +2.00 nC, are placed 0.400 m apart as shown in the figure. What is the direction  of the electric field at poi...

Solved • Dec 22, 2016

Electric Field

Q. Two charges, q1 = -2.50 nC and q 2 = +2.00 nC, are placed 0.400 m apart as shown in the figure. What is the magnitude of the electric field at poin...

Solved • Dec 22, 2016

Electric Field

Q. A charged particle traveling along the +x axis enters an electric field directed vertically upward along the +y axis. If the charged particle exper...

Solved • Dec 21, 2016

Electric Field

Q. The four charges form a square of edge length a. What is the direction of the net electric field at the square's center? a. -x b. +x c. +y d. -...

Solved • Dec 21, 2016

Electric Field

Q. In the figure, point  B is a distance L away from a point charge Q. Point A is a distance 4L away from Q. What is the ratio of the electric field a...

Solved • Dec 21, 2016

Electric Field

Q. Four identical point charges, q, are placed at the corners of a square. Each side of the square has length L. What is the magnitude of the electric...

Solved • Dec 21, 2016

Electric Field

Q. Two charged metal plates in vacuum are 0.15 m apart, with an electric field between the plates of E = 3000 N/C. A proton (q= +e = 1.6x10-19 C, m = ...

Solved • Dec 20, 2016

Electric Field

Q. Find the electric field at point P due to the charges shown.

Solved • Dec 20, 2016

Electric Field

Q. An electron traveling along the +x-axis enters an electric field that is directed vertically down, i.e., along the negative y-axis. What will be th...

Solved • Dec 19, 2016

Electric Field

Q. Two point charges having charge of -6.25 x 10 -9 C and -12.5 x 10 -9 are 25.0 cm apart. a) Calculate the magnitude of Coulomb force between them. ...

Solved • Dec 19, 2016