1.

An a.c. circuit consists of an inductor of inductance 0.5 H and a capacitor of capacitance 8 uF in series. The current in the circuit is maximum when the angular frequency of a.c. source is

Answer»

`500 RAD s^(-1)`
`4000 rad s^(-1)`
`5000 rad s^(-1)`
`2 XX 10^(6) rad s^(-1)`

Solution :Here L=0.5 H and C `=8 MUF = 8 xx 10^(-6)` F, hence angualr frequency for maximum current i.e., for resonance condition) is
`omega_(0) =1/sqrt(LC) = 1/sqrt(0.5 xx 8 xx 10^(-6)) = 500 rad s^(-1)`


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