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When a 60 mH inductor and a resistor are...

When a 60 mH inductor and a resistor are connected in series with an AC voltage source, the voltage leads the current by 60°. If the inductor is replaced by a 0.5 uF capacitor, the voltage lags behind the current by 30°. What is the frequency of the AC supply ?

A

`1/(2pi) xx 10^(4) Hz`

B

`1/pi xx 10^(4) Hz`

C

`3/(2pi) xx 10^(4) Hz`

D

`1/(2pi) xx 10^(8) Hz `

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