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Q.

A rod of length 50 cm moves with a speed of 10 cm/s, in a uniform magnetic field of strength 10 G at an angle of 30° with the field. The emf induced across the ends of the rod is :

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a

5000 CGS unit

b

2500 CGS unit

c

7500 CGS unit

d

1000 CGS unit

answer is B.

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Detailed Solution

e=Bv sinθl    =10 x 10 x sin 30o x 50=2500 CGS units
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