A charged particle q is placed at the centre O of cube of length L (ABCDEFGH) Another same charge q is placed at a
distance L from O . Then the electric flux through ABCD is
As we learnt in
Gauss's Law -
Total flux linked with a closed surface called Gaussian surface.
Formula:
- wherein
No need to be a real physical surface.
Qenc - charge enclosed by closed surface.
Electric flux through ABCD = Zero
for the charge placed outside the box as the charged enclosed is zero. But for the charge inside the cube, it is through all the surfaces. For one surface, it is
( Option not given )
Option 1)
Incorrect
Option 2)
Incorrect
Option 3)
Incorrect
Option 4)
Incorrect
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