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12 Magnetism and the motor effect

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Question 36
H

A straight wire is held perpendicular to a uniform magnetic field. A student doubles the current and reverses the field without changing its strength. Which describes the magnetic forces on the wire and on the magnet?

[1]
A

Both forces double in size and both reverse direction.

B

Both forces halve in size and neither reverses direction.

C

Both forces halve in size and both reverse direction.

D

Both forces double in size and neither reverses direction.

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12 Magnetism and the motor effect Questions

  1. GCSE
  2. /Physics
  3. /12 Magnetism and the motor effect

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