Questions
A copper rod of length l is rotated about one end perpendicular to the magnetic field B with constant angular velocity The induced e.m.f. between the two ends is
detailed solution
Correct option is A
If in time the rod turns by an angle θ, the area generated by the rotation of rod will be=12l×lθ=12l2θSo the flux linked with the area generated by the rotation of rodϕ=B12l2θcos0°=12Bl2θ=12Bl2ωt So, e=dϕdt=ddt12Bl2ωt=12Bl2ωTalk to our academic expert!
Similar Questions
A uniform conducting rod of length l is rotating with uniform angular velocity about point P in uniform magnetic field B as shown. Calculate VP – VQ.
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