Questions
If a coil of 40 turns and area is suddenly removed from a magnetic field, it is observed that a charge of flows into the coil. If the resistance of the coil is the magnetic flux density in is
detailed solution
Correct option is B
n=40,A=4cm2=4×10−4m2 q=2×10-4 C R=80Ωq=BANR⇒B=qRANB=2×10−4×804×10−4×40=1Wb/m2Talk to our academic expert!
Similar Questions
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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