EMF in Physics MCQs Quiz Online PDF Download

Practice emf in physics MCQs, physics MCQ test for online learning. Electromagnetic induction in physics quiz has multiple choice questions (MCQ), emf in physics quiz questions and answers to practice as square coil of side 16 cm having 200 turns rotating in magnetic field of 0.05 t with peak emf of 12 v will produce angular velocity of, answer key help with choices as 47 rad s-1, 49 rad s-1, 42 rad s-1 and 48 rad s-1 problem solving for viva, competitive exam preparation, interview questions. Free study guide is for online learning emf in physics quiz with MCQs to practice test questions with answers. EMF in Physics Video

MCQs on EMF in Physics Quiz PDF Download

MCQ. Square coil of side 16 cm having 200 turns rotating in magnetic field of 0.05 T with peak EMF of 12 V will produce angular velocity of

  1. 47 rad s-1
  2. 49 rad s-1
  3. 42 rad s-1
  4. 48 rad s-1

A

MCQ. Whenever magnetic flux linked with a coil changes, the induced EMF in the circuit will change

  1. for a short time
  2. for a long time
  3. forever
  4. as long as change in flux

D

MCQ. An EMF of 5.6 V is induced in a coil while current in coil is decreased from 100 A to 20 A in 0.02 s, its mutual induction will be

  1. 1.4 × 10-3
  2. 2.4 × 10-3
  3. 3.4 × 10-3
  4. 4.4 × 10-3

A

MCQ. Back EMF is 120 V when motor is turning at 1680 revs per min. The back EMF when motor rotates at 3360 revs per min, will be

  1. 220 V
  2. 240 V
  3. 260 V
  4. 280 V

B

MCQ. Michael Faraday observed that EMF was set up in a conductor in the year of

  1. 1831
  2. 1832
  3. 1840
  4. 1842

A