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A conducting rod PQ of length l=1.0m is ...

A conducting rod `PQ` of length `l=1.0m` is moving with a uniform speed `v2.0m//s` in a uniform magnetic field `B=4.0T` directed into the paper.
A capacitor of capacity `C=10muF` is connected as shown in figure. Then

A

`q_(A)=+80muCandq_(B)=-80muC`

B

`q_(A)=-80muCandq_(B)=+80muC`

C

`q_(A)=0=q_(B)`

D

Charge stored in the capacitor increases exponentially with time

Text Solution

Verified by Experts

The correct Answer is:
A
Since, flux changes then current is induced in anticlockwise direction
`Pto+ve,Qto-ve`
`Q=Ce=C(Blv)`
= `10xx10^(-6)(4xx1xx2)=80muC`.
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