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A resistance of 50Omega is connected in ...

A resistance of `50Omega` is connected in series with a 10 `muF` capacitance and these are connected to a 20 V, 50 Hz a.c. supply. The total impedance is

A

121.5 `Omega`

B

155.6 `Omega`

C

322 `Omega`

D

195.5 `Omega`

Text Solution

Verified by Experts

The correct Answer is:
C
`X_(C)=(1)/(2pifC)`
`=(1)/(3xx3.14xx50xx10xx10^(-6))=318.4Omega`
`Z=sqrt(R^(2)+X_(C)^(2))=sqrt(50^(2)+(318.4)^(2))`
`~~322Omega`
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