Electromagnetic Induction

Question 1

The magnetic field 0.02 m from a wire is 0.1 T. What is the magnitude of the magnetic field 0.01 m from the same wire?

Revolt · Accepted Answer

0.2 T

Question 2

When using the right-hand rule to determine the direction of the magnetic force on a charge, which part of the hand points in the direction of the magnetic field?

Revolt · Accepted Answer

fingers

Question 3

Which describes the magnetic field that forms when a wire carries an electric current?

Revolt · Accepted Answer

It is in a cylinder around the wire.

Question 4

Which equation is used to calculate the magnetic force on a charge moving in a magnetic field?

Revolt · Accepted Answer

F = |q|vBsin

Question 5

What direction can the charge move and experience no magnetic force? Check all that apply.

Revolt · Accepted Answer

left; right

Question 6

The diagram shows a positive charge moving in a magnetic field.

Revolt · Accepted Answer

up

Question 7

A student uses the right-hand rule as shown.

Revolt · Accepted Answer

right

Question 8

A current in a wire increases from 2 A to 6 A. How will the magnetic field 0.01 m from the wire change?

Revolt · Accepted Answer

It increases to three times its original value.

Question 9

When using the right-hand rule to determine the direction of the magnetic force on a charge, which part of the hand points in the direction that the charge is moving?

Revolt · Accepted Answer

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Electromagnetic Induction Answers

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