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

Options

A. `q_(A)=+80 muC and q_(B)=-80 muC`
B. `q_(A)=-80 muC and q_(B)=+80 muC`
C. `qA=0=qB`
D. Charge stored in the capacitor increase exponentially with time

Answer

A

Explanation

`q=CV`
`=C(Bvl)`
`=(10xx10^(-6))(4)(2)(1)C`
`=80muC`=constant