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A time varying voltage is applied across...

A time varying voltage is applied across `A` & `B` such that voltage across capacitor is given by `V_(C)=2sin2t`. What is maximum potential difference across the reistance?

A

`9V`

B

`18V`

C

`3V`

D

`6V`

Text Solution

Verified by Experts

The correct Answer is:
A
`q=CV` brgt `=[6xx3sin2t]xx10^(-6)`
`i=(dq)/(dt)[6xx3xx2cos2t]xx10^(-6)`
`V_(R)=iR=9cos2timpliesV_("max")=9V`
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    A
    leads the current by phase angle `((pi)/(2))` rad.
    B
    leads the current by phase angle `(pi)` rad.
    C
    lags behind the current by phase angle `((pi)/(2))`rad.
    D
    lags behind the current by phase angle `(pi)` rad.

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    a DC voltage appears across load
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