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Consider a thin conducting shell of radi...

Consider a thin conducting shell of radius `R` carrying total charge `Q`. Two point charges `Q` and `2Q` are placed on points `A` and `B`, which are at a distances of `R/2` and `2R` from the center of the cell respectively as shown in the figure. If the cell is earthed how much charge will flow to the earth?

A

`3Q`

B

`Q`

C

`2Q`

D

`Q/2`

Text Solution

Verified by Experts

The correct Answer is:
A
Since shell is earthed its potential is zero
`(KQ^(1))/R+(K(2Q))/(2R)=0`
`:. Q^(1)=-Q` Hence `3Q` will flow to the earth
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