Question Detail

PHY 102 Test Compilation PHY 102 27 Objective Question

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:
Options
A -5.6 V
Correct Answer
B -4.3 V
C -3.8 V
D -2.7 V
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.

Question Info