A copper rod of length l is rotating about mid point perpendicular to the magnetic field B with constant angular velocity omega the induces emf between the two ends is?....Ans is zero, please explain why

Dear student ,
                       Emf induce only ,when there is close loop but there is no close only rod is rotating in magnetic field .
                        that is why induced emf is zero across the end of rod .
Regards
                       

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