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An inductor 20 mH , a capacitor 50mu F a...

An inductor 20 `m`H , a capacitor 50`mu` F and a resistor 40 are connected in series across a source of emf V=10 sin 340 t. The power loss in A.C. circuit is

A

0.89 W

B

0.51 W

C

0.67 W

D

0.76 W

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An inductor 20 mH , a capacitor 50 muF and a resistor 40 Omega are connected in series across a source of emf v = 10 sin 340 t. The power loss in AC circuit is ………. .

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An inductor (L = 20 mH) , a resistor (R = 100 Omega) and a battery (varepsilon = 10 V) are connected in series. Find (a) the time constant, (b) the maximum current and (c ) the time elapsed before the current reaches 99% of the maximum value.

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