A coil with an inductance of 2.0 H and a resistance of 10 ohm is suddenly connected to an ideal battery with E = 100 V. At 0.10 s after the connection is made, what is the rate at which:
(a) energy is being stored in the magnetic field, ans: 2.4*102
(b) thermal energy is appearing in the resistance, and ans: 1.5*102
(c) energy is being delivered by the battery? ans: 3.9*102
The Attempt at a Solution
V=IR 100/10 = I = 10 A
UL= .5*2*102 = 100
Clearly I'm missing a step or another equation to derive the current because I don't believe 10 A is correct. Please advise!