Question

an energy of u0 is stored in an inductor when the current flowing through it is i0. if the current is doubled to 2i0, the energy stored is closest to: a) zero. b) u0 c) 2 u0 d) 4 u0 e) u0/2.

Answer 1

(D - 4u0)

E (stored is proportional to I^2 if I is current thru inductor)