Questions in emi

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	Two coils A and B having turns 300 and 600 respectively are placed near each other, on passing a current of 3.0 ampere in A, the flux linked with A is $1.2 \times {10^{ - 4}}\,weber$ and with B it is $9.0 \times {10^{ - 5}}\,weber$. The mutual inductance of the system is
	In a circular conducting coil, when current increases from 2 A to 18 A in 0.05 sec., the induced e.m.f. is 20 V. The self inductance of the coil is
	Find out the e.m.f. produced when the current changes from 0 to 1 A in 10 second, given $L = 10 \mu H$
	Which of the following is not the unit of self inductance
	A coil of $100$ turns carries a current of $5 mA$ and creates a magnetic flux of $10^{–5} weber$. the inductance is
	In circular coil, when no. of turns is doubled and resistance becomes $\frac{1}{4}th$ of initial, then inductance becomes
	The current in a coil of inductance 5 H decreases at the rate of 2 A/s. The induced e.m.f. is
	The self-induced e.m.f. in a 0.1 H coil when the current in it is changing at the rate of 200 ampere/second is
	Two circuits have mutual inductance of 0.1 H. What average e.m.f. is induced in one circuit when the current in the other circuit changes from 0 to 20 A in 0.02 s
	An air core solenoid has 1000 turns and is one metre long. Its cross-sectional area is $10 cm^2$. Its self inductance is