Question Detail
Question
The flux linking a coil changes from 5.0x10-4 Wb to 2.2x10-4 Wb in 0.025 seconds. Calculate the average e.m.f. induced in the coil if it has 500 turns:
Correct Answer
Option A is the correct answer.
Detailed Explanation
emf=-N(delta_Phi/delta_t)=-(500)(2.8e-4)/(0.025)=-5.6V.
Hint
emf=-N(delta_Phi/delta_t)=-(500)(2.8e-4)/(0.025)=-5.6V.