Physics Physics Practice Problems Solutions Library

Electric Charge Solutions Library

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26 solutions

Electric Charge

Q. The Stanford Linear Accelerator Center (SLAC) operated on electron storage ring about 72.0 m in diameter called SPEAR (closed in 2009), in which a ...

Solved • Jul 24, 2020

Electric Charge

Q. An initially neutral conductor contains a hollow cavity in which there is a + 100 nCpoint charge. A charged rod transfer -50 nC to the conductor.Af...

Solved • Jul 13, 2020

Electric Charge

Q. How to give the spheres exactly equal but opposite charges? a) Make sure spheres are not in contact with each other. Rub the glass rod on the silk ...

Solved • Jul 10, 2020

Electric Charge

Q. If two objects are electrically attracted to each other, A) both objects must be negatively charged. B) both objects must be positively charged. C)...

Solved • Jun 2, 2020

Electric Charge

Q. How many electrons are necessary to produce 1.0 C of negative charge? (e=1.60x10-19C)

Solved • May 26, 2020

Electric Charge

Q. A hollow, conducting sphere with an outer radius of 0.254 m and an inner radius of 0.202 m has a uniform surface charge density of +6.63x10-6 C/m2....

Solved • May 21, 2020

Electric Charge

Q. The electric field 5.40 cm from a very long charged wire is (2100 N/C , toward the wire).What is the charge (in nC) on a 1.00-cm-long segment of th...

Solved • May 21, 2020

Electric Charge

Q. The positive charge in (Figure 1) is +Q.What is the negative charge if the electric field at the dot is zero?

Solved • May 21, 2020

Electric Charge

Q. A battery-operated car utilizes a 12.0 V system. Find the charge the batteries must be able to move in order to accelerate the 750 kg car from rest...

Solved • May 21, 2020

Electric Charge

Q. To start a car engine, the car battery moves 3.75x1021 electrons through the start motor. How many coulombs of charge were moved? 

Solved • May 21, 2020

Electric Charge

Q. Consider the following configuration of fixed, uniformly charged spheres (see the figure ):a blue sphere fixed at the origin with positive charge q...

Solved • May 19, 2020

Electric Charge

Q. A very large plastic sheet carries a uniform charge density of -6.00nC/m2 on one face.a) As you move away from the sheet along a line perpendicular...

Solved • May 19, 2020

Electric Charge

Q. In a typical lightning strike, 2.5 C flows from cloud to ground in 0.20 ms. What is the current during the strike?

Solved • May 13, 2020

Electric Charge

Q. If you place a charged object next to an uncharged object that is a conductor, A) The force depends on whether the charge is positive or negative. ...

Solved • May 11, 2020

Electric Charge

Q. A plastic rod is charged to -20nC by rubbing.a. Have electrons been added to the rod or protons removed? Explain.b. How many electrons have been ad...

Solved • Apr 30, 2020

Electric Charge

Q. In the late 19th century, great interest was directed toward the study of electrical discharges in gases and the nature of so-called cathode rays. ...

Solved • Apr 30, 2020

Electric Charge

Q. The charge of an electron is -1.60 × 10-19 C. Determine the charge to mass ratio of the electron (in 1011 C/kg). (Hint: divide the electron's charg...

Solved • Apr 29, 2020

Electric Charge

Q. During any process, the net electric charge of an isolated system does not change (is conserved).True or False

Solved • Apr 27, 2020

Electric Charge

Q. The magnitude of the charge of an electron is:a. about 1000 times the charge of a protonb. equal to the magnitude of the charge of a protonc. None ...

Solved • Apr 23, 2020

Electric Charge

Q. The charge carried by one electron is e = -1 6 × 10-19 C.  The number of electrons necessary to produce a charge of -1.0 C isA) 6.3 × 1018 B) 1.6 ×...

Solved • Mar 11, 2020

Electric Charge

Q. When a honeybee flies through the air, it develops a charge of +17 pC. How many electrons did it lose in the process of acquiring this charge?

Solved • Mar 10, 2020

Electric Charge

Q. An object has a positive charge of 5.0 μC. What is the net number of electrons lost/gained? A. 1.602 x 10-19 lost electrons B. 3.12 x 1013 lost e...

Solved • Mar 29, 2017

Electric Charge

Q. A metal sphere is insulated electrically and is given a charge. If 50 electrons are added to the sphere in giving a charge, how many Coulombs are a...

Solved • Dec 26, 2016

Electric Charge

Q. The charge on the proton is the same asA) the charge on the neutron.B) the charge on the electron.C) the charge on the atom.D) the charge on the el...

Solved • Dec 21, 2016

Electric Charge

Q. Describe the experiment, which established that atoms contain a small nucleus, which contains almost all of its mass.

Solved • Dec 21, 2016

Electric Charge

Q. What is the charge on an unknown ion which contains 250 protons, 270 neutrons, and 244 electrons?  

Solved • Dec 20, 2016