Magnetic Field and Force Answers

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?

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

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

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?

A wire runs left to right and carries a current in the direction shown.

A point charge of 5.0 × 10–7 C moves to the right at 2.6 × 105 m/s in a magnetic field that is directed into the screen and has a field strength of 1.8 × 10–2 T.

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

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

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