Question

A 10 m long copper wire remaining in the east-west
horizontal direction is falling down with speed of
5 m/s. If the horizontal component of the earth's
magnetic field is 0.3 x 10-4 Wb/m2 then the emf
developed between the ends of the wire is
(1) 0.15 volt
(2) 1.5 volt
(3) 0.15 millivolt
(4) 1.5 millivolt​

Answer 1

Answer:

(1) 0.15 Volts

Explanation:

E=BvL

B=3×10^-5

v=5

L=10

E=0.15 Volts

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