a coil has an inductance of l=0.65mh and resistance of r=0.75 ohms . it is connected to the terminals of a battery with a emf of 1.5V and negligible internal resistance . find
a) the final steady-state or equilibrium current
b) the rate of increase of current at the instant when the current is 0.6A
c) the current 0.43 s after the circuit is closed