The magnetic field in a single-loop coil of area 23 cm2 steadily changes from 6.4×10-3 T to 9.6×10-3 T in 0.?
) The magnetic field in a single-loop coil of area 23 cm2 steadily changes from 6.4×10-3 T to 9.6×10-3 T in 0.57 s. What emf is induced in the coil?
More Questions From This User See All
Answers & Comments
Verified answer
hi,
induced emf is equal to the rate of change in flux .
flux=B.A
hence,
e = d(BA)/dt
e= Ad(B)/dt
dB=(9.6 - 6.4)x10^-3
= 3.2x10^-3
e=23x10^-4 x 32x10^-4/57 x 10^-2
(i have changed cm^2 into m^2 to get the ans in SI units)
e=1.29 x10^-5