Question

A coil having 500 square loops each of side 10 cm is placed normal to a magnetic flux which increases at the rate of 1.0 tesla/second. The induced e.m.f. in volts is

• A. 0.1
• B. 0.5
• C. 1
• D. 5

Answer 1

Answer: (D)

5

Answer 2

$|e| = N\left( \frac{\Delta B}{\Delta t} \right).A\cos\theta = 500 \times 1 \times (10 \times 10^{- 2})^{2}\cos 0 = 5V.$