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A rectangular loop with a sliding rod of length 2m & resistance `2Omega`. It moves in a uniform magnetic field of 3T perpendicular to plane of loop. The external force required to keep the rod moving with constant velocity of `2ms^(-1)`

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A rectangular loop with a sliding rod of length 2m & resistance `2Omega`. It moves in a uniform magnetic field of 3T perpendicular to plane of loop. The external force required to keep the rod moving with constant velocity of `2ms^(-1)` is
A rectangular loop with a sliding rod of length 2m & resistance 2Ω. It moves in a uniform magnetic field of 3T perpendicular to plane of loop. - Sarthaks eConnect | Largest
Options:
(a) 2N (b) 4N (c) 6N (d) 8N

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