If the current through an inductor increases from 2 A to 3 A, the magnetic energy stored in the inductor increases by

Step-by-step solution

Magnetic energy stored in the inductor is U = 1 2 LI ^2 U I ^2 U ₂ U ₁ = I ₂ I ₁ = ( 3 2 )^2 U ₂= 9 4 U ₁ % increase in energy stored is aligned & U %= ( U₂-U₁ U₁ 100 ) % & = 9 4 U₁-U₁ U₁ 100=125 % aligned