Question

A magnetic field of induction 20T acts at an angle of 30° to the plane of the circular coil of area 0.1m2 having 100 turns. If the coil is removed from the field in 0.1 sec the induced e.m.f in the coil is.​

Answer 1

Answer:

Here, B1=10T,θ=0∘,N=50,

A=50cm2=50×10−4m2,e=?

B2−0,dt=0.1s

e=−(ϕ2−ϕ1)dt=−(0−NB1Acos0∘)dt

=50×10×50×10−4×10.1=25V

Explanation:

Answer 2

Answer:

Here, B1=10T,θ=0∘,N=50,

A=50cm2=50×10−4m2,e=?

B2−0,dt=0.1s

e=−(ϕ2−ϕ1)dt=−(0−NB1Acos0∘)dt

=50×10×50×10−4×10.1=25V

Explanation: