Electric Motors MCQs Quiz Worksheet PDF Download

Learn electric motors MCQs in science quiz for test prep. Electrical circuits and electric currents quiz questions has multiple choice questions (MCQ), electric motors test as to make coil keep rotating, current is reversed after every half turn by a device called. Answer key help with choices as brush, commutator, mutator and carbon spring problem solving for competitive exam, viva prep, interview questions worksheets. Free science revision notes to practice electric motors quiz with MCQs to find questions answers based online tests.

MCQs on Electric Motors Quiz PDF Download

MCQ. To make the coil keep rotating, the current is reversed after every half turn by a device called

  1. brush
  2. commutator
  3. mutator
  4. carbon spring

B

MCQ. A magnet may attract or repel by

  1. another magnet
  2. electric current
  3. resistor
  4. dynamo

A

MCQ. Electric motor changes electrical energy into

  1. potential energy
  2. thermal energy
  3. heat energy
  4. kinetic energy

D

MCQ. Many machines we use, are powered by

  1. thermal energy
  2. sound energy
  3. electric motors
  4. dynamos

C

MCQ. The magnetic field of the coil and the permanent magnet

  1. attract each other
  2. repel each other
  3. combine with each other
  4. stay with each other

B