Questions in emi

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	When the current through a solenoid increases at a constant rate, the induced current
	If in a coil rate of change of area is 5 m2/milli second and current become 1 amp from 2 amp in $2 \times {10^{ - 3}}\,sec.$ If magnitude of field is 1 tesla then self inductance of the coil is
	The inductance of a solenoid 0.5 m long of cross-sectional area $20 cm^2$ and with 500 turns is
	The equivalent inductance of two inductances is 2.4 henry when connected in parallel and 10 henry when connected in series. The difference between the two inductances is
	An e.m.f. of 12 volt is produced in a coil when the current in it changes at the rate of 45 amp/minute. The inductance of the coil is
	An average induced e.m.f. of 1V appears in a coil when the current in it is changed from 10A in one direction to 10 A in opposite direction in 0.5 sec. Self-inductance of the coil is
	A coil of resistance $10 \Omega$ and an inductance 5H is connected to a 100 volt battery. Then energy stored in the coil is
	If a change in current of 0.01 A in one coil produces a change in magnetic flux of $1.2 \times {10^{ - 2}}Wb$ in the other coil, then the mutual inductance of the two coils in henries is
	Energy stored in a coil of self inductance 40mH carrying a steady current of 2 A is
	A solenoid of length l metre has self-inductance L henry. If number of turns are doubled, its self inductance [MP PMT 2001]