Electricity and Magnetism

Practice Questions

AP Physics B › Electricity and Magnetism

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1

A charge travels along a copper wire that has a resistance of . It takes two seconds for the charge to travel along the wire. The potential difference in the wire is . What is the charge of the particle?

2

A charge travels along a copper wire that has a resistance of . It takes two seconds for the charge to travel along the wire. The potential difference in the wire is . What is the charge of the particle?

3

A charge travels along a copper wire that has a resistance of . It takes two seconds for the charge to travel along the wire. The potential difference in the wire is . What is the charge of the particle?

4

How much work is done by the electric field moving an electron along an equipotential surface with a potential of ?

5

Which of the following changes to a copper wire will lead to the greatest decrease in voltage?

6

Which of the following changes to a copper wire will lead to the greatest decrease in voltage?

7

How much work is done by the electric field moving an electron along an equipotential surface with a potential of ?

8

Which of the following changes to a copper wire will lead to the greatest decrease in voltage?

9

How much work is done by the electric field moving an electron along an equipotential surface with a potential of ?

10

A proton traveling at in a horizontal plane passes through an opening into a mass spectrometer with a uniform magnetic field directed upward. The particle then moves in a circular path through and crashes into the wall of the spectrometer adjacent to the entrance opening. How far down from the entrance is the proton when it crashes into the wall?

The proton’s mass is and its electric charge is .

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