Skip to content

Course home

Sign up

12 Magnetism and the motor effect

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182
Question 80
H

A simple motor rotates at 900 revolutions per minute. Its split-ring commutator reverses the current in the coil every half-turn. How many times is the current reversed in 2.0 s?

[1]
A

606060

B

151515

C

303030

D

360036003600

Markscheme

12 Magnetism and the motor effect Questions

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

Question bank