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A point charge 'q' is placed on the line...

A point charge `'q'` is placed on the line `AH` and just outside the cube (of side `d`) at a distance of `'r'(rlt ltd)`. Total flux of electric field through the surface `ABCD(phiABCD)` is

A

`-q/(8epsilo_(0))`

B

`q/(16epsilon_(0))`

C

`q/(8epsilon_(0))`

D

`-q/(16 epsilon_(0))`

Text Solution

Verified by Experts

The correct Answer is:
D
`phiBCFG=phiCDGH=phiEFGH=q/(24epsilon_(0)), phi EHAD=0, phiABEF=phiABCD=x`
`2xx x +0+q/(24epsilon_(0))xx3=0`
`impliesx=-1/(16epsilon_(0))`
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