Questions in emi

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	The coefficient of mutual inductance of two coils is 6 mH. If the current flowing in one is 2 ampere, then the induced e.m.f. in the second coil will be
	An L-R circuit has a cell of e.m.f. E, which is switched on at time t = 0. The current in the circuit after a long time will be
	Two coils are placed close to each other. The mutual inductance of the pair of coils depends upon
	When the current change from + 2A to – 2A in 0.05 second, an e.m.f. of 8 V is induced in a coil. The coefficient of self-induction of the coil is
	A coil resistance 20? and inductance 5H is connected with a 100V battery. Energy stored in the coil will be
	Why the current does not rise immediately in a circuit containing inductance
	Two circular coils have their centres at the same point. The mutual inductance between them will be maximum when their axes
	The current in a coil decreases from 1 A to 0.2 A. In 10sec. Calculate the coefficient of self inductance. If induced emf is 0.4 volt.
	The current through choke coil increases form zero to 6A in 0.3 seconds and an induced e.m.f. of 30 V is produced. The inductance of the coil of choke is
	The resistance and inductance of series circuit are $5\Omega $ and 20H respectively. At the instant of closing the switch, the current is increasing at the rate 4A-s. The supply voltage is