Question

A rectangular coil, 0.20 m × 0.10 m of 100 turns,
rotates in a magnetic field of 3×10-3 T with a
frequency of 20 KHz, about an axis normal to the
magnetic field. What is the maximum value of
induced emf?
(1) 0.12 i volt
(2) 0.18 a volt
(3) 0.24 a volt
(4) 0.30 a volt​

Answer 1

Answer:

0.24 pi volt

Explanation:

E=NBAw

=100×(3x10^-3)×(0.2×0.1)×(2 pi× 20) ● w= 2pi f

=0.24pi volt