Question

The currents flowing in the two coils of self-inductance L₁ = 16 mH and L₂ = 12 mH are increasing at the same rate. If the power supplied to the two coils are equal, find the ratio of

(i) Induced voltages 

(ii) The currents and 

(iii) The energies stored in the two coils at a given instant.

Answer 1

(i) Induced voltage (emf) in the coil,

(ii) Power supplied, P= εI 

Since power is same for both the coils

(iii) Energy stored in the coil is given by