The flux through each of 1000 turns of a coil changes by 5 10^-4 Wb in 0.25 s. The average induced e.m.f. is:

  1. 1 V
  2. 0.002 V
  3. 4 V
  4. 2 V
Answer

D) 2 V

mathcalE = N DeltaPhiDelta t = 1000 5 10^-40.25 = 2 V. SLO P-09-E-42 · Application

Physics MCQ · More Magnetism and Electromagnetic Induction MCQs · Practise