The coefficient of mutual inductance of two coils is 6 mH. If the current flowing

The coefficient of mutual inductance of two coils is 6 mH. If the current flowing in one is 2A, the induced e.m.f. in the second coil will be

Options

(a) Zero
(b) 3 V
(c) 3 mV
(d) 2 mV

Correct Answer:

Zero

Explanation:

E.M.F. is induced in secondary coil only when current in primary coil changes. Since current in one coil is constant at 2 amp, e.m.f. induced in secondary coil is zero.

admin:

Related Questions

  1. A geostationary satellite is orbiting the earth at a height of 5R above that surface
  2. If ∆Q>0 when heat flows into a system, ∆W>0 when work is done on the system
  3. A pellet of mass 1 g is moving with an angular velocity of 1 rad/s along a circle
  4. If a wire is stretched to four times its length, then the specific resistance
  5. A bullet is shot from a riffle. As a result the rifle recoils.The kinetic energy of riffle