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A square loop of wire with side length 1...

A square loop of wire with side length 10 cm is placed at angle of `45^(@)` with a magnetic field that changes uniformly from 0.1 T to zero in 0.7s. The induced current in the loop (its resistance is `1Omega`) is

A

1.0 mA

B

2.5 mA

C

3.5 mA

D

4.0 mA

Text Solution

Verified by Experts

The correct Answer is:
A
`|e|=(Deltavarphi)/(Deltat)=(BAcos45^(@))/0.7=(0.1xx(0.1)^(2)xx1//sqrt2)/0.7=1mA`.
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