Question

time. 7. A circular coil has 15 turns of radius 2cm each. The plane of the coil lies at 40⁰ to a uniform magnetic field of 0.2 T. if the field is increased to 0.5T in 0.2s, find the magnitude of the induced emf.​

Answer 1

you can take help from this

Step-by-step explanation:

Here, A=200cm2

N=20

ω=50srad

B=3×10−2T

For maximum current emf should be maximum.

So for maximum emf e=NABωsinωt

sinωt=1

emax=NABω

emax=20×200×10−4×50×3×10−2

emax=0.6V

Since resistance is not given,let us consider R

imax=Remax=R0.6