Navigate

The phase difference between the flux linked with a coil rotating in a uniform

The phase difference between the flux linked with a coil rotating in a uniform magnetic field and induced emf produced in it is

Options

(a) π/2
(b) π/3
(c) (-π/6)
(d) π

Correct Answer:

π/2

Explanation:

The flux ɸ = B.A = |B| |A| cos θ

Also, induced emf, ε = – (dɸ / dt) = (d |B| |A| cos θ) / dt

= – |B| |A| [d cos θ / dt] = |B| |A| sin θ. ω

ε = BA ω cos [θ – (π / 2)]

AIIMS2015
admin:

Related Questions

  1. The instantaneous angular position of a point on a rotating wheel is given by
  2. A projectile is fired at an angle of 45° with the horizontal
  3. A tangent galvanometer has a coil of 50 turns and a radius of 20 cm. The horizontal
  4. A beam of light consisting of red, green and blue colours is incident on a right
  5. Under the action of a force F=cx, the position of a body changes from 0 to x.The work done