73.
For a particular toroidal inductor core, the inductance value obtained for 50 Turns is 200 µH. If two such inductors are wired in parallel, the resulting inductance is

76.
Two coupled coils have self inductances L1 = 10 mH and L2 = 20 mH. The co-efficient of coupling (K) being 0.75 in the air. Voltage in the second coil when the current in circuit is given by I = 2 sin (314t) A is . . . . . . . .

79.
In the circuit below, if the power dissipated in the 6 Ω resistor is zero then V is
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