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2A closed coil of copper whose area is 1...

2A closed coil of copper whose area is `1m xx 1m` is free to rotate about an axis. The coil is placed perpendicular to a magnetic field of `0.10 Wb//m^(2)`. It is rotated through `180^(@)` in 0.01 second. Then (The resistance of the coil is `2.0Omega`)

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