Figure shows a conducting disc rotating about its axis in a perpendicular magnetic field B. A resistor of resistance R is connected between the center and the rim. The radius of the disc is 5.0 cm, angular speed ω = 40 rad/s, B = 0.10 T and R = 1 Ω Ω . The current through the resistor is
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Verified by ExpertsThe correct answer is:
A
= 
= 5 mA
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