Physics Physics Practice Problems Solutions Library

Electric Field Solutions Library

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58 solutions

Electric Field

Q. Part ASpecify the strength of the electric field. 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. 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