ElectroMagnetic InductionHard
Question
When a ′J′ shaped conducting rod is rotating in its own plane with constant angular velocity ω, about one of its end P, in a uniform magnetic field 
directed normally into the plane of paper) then magnitude of emf induced across it will be
directed normally into the plane of paper) then magnitude of emf induced across it will beOptions
A.
B.
BωL2
BωL2C.Bω(L2 + l2)
Bω(L2 + l2)D.Bωl2
Bωl2Solution
e = 
effective length for the given diagram is
Ieff 2 = l2 + L2 ⇒ e =
effective length for the given diagram is
Ieff 2 = l2 + L2 ⇒ e =
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