Questions
A small piece of metal wire is dragged across the gap between the poles of a magnet in 0.4 sec. If the change in magnetic flux is 8 x 10-4 Wb, emf induced in the wire is :
detailed solution
Correct option is D
emf induced= dϕdt= 8×10-40.4= 2×10-3 VTalk to our academic expert!
Similar Questions
A loop, having area 20cm2, is made of thin copper wire. If is placed in a uniform magnetic field of induction 1.5 Tesla with its plane perpendicular to the field. If area of the loop increases to 30 cm2 in 0.5 second, average emf induced in the loop is
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