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A box P and a coil Q are connected in se...

A box P and a coil Q are connected in series with an ac source of variable frequency. The emf of the source is constant at 10 V. Box P xontains a capacitance of `32 Omega`. Coil Q has a self inductance of 4.9 mH and a resistance of `68 Omega` in series. The frequency is adjusted so that maximum current flows in P and Q.

the voltage across Q is

A

20 V

B

`(sqrt(1350))/(10)V`

C

`5.5 V`

D

`(sqrt(9524))/(10)V`

Text Solution

Verified by Experts

The correct Answer is:
D
`V_(Q)=IZ_(Q)=1/10 xx(97.6)=9.76 V`.
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