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An L-C-R series circuit with inductor of...

An L-C-R series circuit with inductor of reactance is 25 `Omega`, reactance of capacitor is 50 `Omega` and resistance of 10 `Omega` is connected to an A.C. source. The impedance of the circuit will be …….

A

`725 Omega`

B

`26.9 Omega`

C

`72.5 Omega`

D

`269 Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
`|Z|=sqrt(R^2+(X_L-X_C)^2)`
`=[(10)^2 +(50-25)^2]^(1/2)`
`=[100+625]^(1/2)`
`=(725)^(1/2)`
`therefore Z=26.9 Omega`
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