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In Figure the plate A has 100 muC charge...

In Figure the plate `A` has `100 muC` charge, while the plate `B` has `60 mu C` charge.
.
When only switch `S_(1)` is closed , then

A

`q_(1) = 10 mu C`

B

`q_(2) = -60 muC`

C

`q_(3) = 50 muC`

D

`q_(4) = 10 mu C`

Text Solution

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The correct Answer is:
B
When `S_(1)` is closed, `q_(1) =0` and `q_(2) = - 60 muc` so that `V_(A) =0`
`q_(0)=0 q_(2)=-60 muC q_(3)=60 muC q_(4) =0`.
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