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If a 0.03 H inductor, a 10 Omega resisto...

If a `0.03` H inductor, a `10 Omega` resistor and a `2muF` capacitor are connected in series. At what frequency will they resonate? What will be the phase angle at resonance?

Text Solution

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`f=1/(2pisqrt(2C))` =resonasnce frequency
`=1/(2pisqrt(0.03xx2xx10^-6))`
`=650Hz`
At resonance, `X_L=X_C` and `Z=R`
`:. cos phi=R/Z=1` or `phi=0^@`.
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