A coil of wire with area 0.18 m^2 and 45 turns is placed with its plane parallel to a magnetic field with B = 3.1 T. The coil is then turned so that its plane is now at an angle of 28 degrees to the magnetic field, in a time of 23 ms. What is the induced emf in the coil, in units of volts?
Answers
Answered by
1
Answer:
Initially flux, ϕ=BAcos0=BA
After rotating through an angle 90
o
.
Flux through the coil is zero.
So, Δϕ=BA
Angular speed =w, so, time period =
ω
2π
=T
4
T
is time taken to rotate 90
o
.
So,
Δt
Δϕ
=
T/4
BA
=
π
2BAω
Answered by
0
Answer:
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Explanation:
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