A square shaped coil of side 10 cm, having 100 turns is ...

CBSE Class 12 Physics 2023 All Sets Paper

Question : 4 of 18

Marks: +1, -0

A square shaped coil of side 10 cm, having 100 turns is placed perpendicular to a magnetic field which is increasing at 1 T/s. The induced emf in the coil is

0.1 V
0.5 V
0.75 V
1.0 V

Solution:

Given
N = 100
l = 10 cm

\;{dB}/{dt} = 1

E.M.F. = NA

\;{dB}/{dt}

=100× 10× 10× 10^{-4}× 1

= 1 volt

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