Question:
A horizontal straight wire $20 \mathrm{~m}$ long extending from east to west is falling with a speed of $5.0 \mathrm{~m} / \mathrm{s}$, at right angles to the horizontal component of the earth's magnetic field $0.30 \times 10^{-4} \mathrm{~Wb} / \mathrm{m}^{2}$. The instantaneous value of the e.m.f. induced in the wire will be :-
Correct Option: , 2
Solution:
