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Dependence on Magnetic Field

A copper rod ...

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A copper rod of length / is rotating about mid pointof rod, perpendicular to the magnetic field B withconstant angular velocity o. The induced emf between the two ends is .(1) 1/2B\overset⇀{ω l^2}(2) Bω l^2(3) 2Bω l^{}(4) Zero

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