An average voltage of 10 V is induced in a 250 turns solenoid as a result of a change in flux which occurs in 0.5 second. The total flux change is________?
A0.2 Wb
B0.02 Wb
C2 Wb
D20 Wb
Correct answer
B. 0.02 Wb
Explanation
The correct answer is 0.02 Wb.