The following figure shows a conducting disc rotating about its axis in a perpendicular magnetic field B. The resistor of resistance R is connected between the centre and the rim. The current in the resistor is (The radius of the disc is 5.0 cm, angular speed ω = 10 radian/sec., B = 0.40 T and R = 10 Ω Ω )
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A
Emf induced between center and circum
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