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Q.

A rod of length 10cm made up of conducting and non-conducting material (shaded part is nonconducting). The rod is rotated with constant angular velocity 10rad/s about point O, in constant magnetic field of 2T as shown in the figure. The induced emf between the points A and B of rod will be

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a

0.051V

b

0.1V

c

0.064V

d

0.029V

answer is C.

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Detailed Solution

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E=710B(dx).ω.x=[Bω.x22]710

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A rod of length 10cm made up of conducting and non-conducting material (shaded part is nonconducting). The rod is rotated with constant angular velocity 10 rad/s about point O, in constant magnetic field of 2T as shown in the figure. The induced emf between the points A and B of rod will be