A metal rod of resistance 20 ohm is fixed along a diameter of conducting ring of radius 0.1 m and lies in x-y plane. There is a magnetic field b=50t k the ring rotates with an angular velocity w=20rad/s about its axis. An xternal resistance of 10 ohm is connected across the centre of the ring and rim. The current through external resistance
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refer pic above please.......
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