Questions
A rectangular coil of 300 turns has an average area of average area of The coil rotates with a speed of 50 cps in a uniform magnetic field of strength about an axis perpendicular of the field. The peak value of the induced e.m.f. is (in volt)
detailed solution
Correct option is C
Peak value of emf=e0=ωNBA=2πvNBA=2π×50×300×4×10−2×25×10−2×10×10−2=30π voltTalk to our academic expert!
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A square wire loop, of side a has a long straight wire carrying a constant current i that passes through the centre of the loop and perpendicular to its plane as shown in Fig.
The current induced in the square loop is
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