playing with flux...

IIT JEE Sample Questions › Electricity and magnetism questions › playing with flux...

A point charge q is placed at a corner of a cube. Find the flux passing through the cube ?

If you are through with the 1st part , try to find out the flux passing through the surface of the above cube which lies opposite to the point charge.

#Physics #Electricity and magnetism

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2 Answers

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Asish Mahapatra ·2009-12-10 01:28:12

first part is q/8Îµ because the charge can be assumed to be at the centre of coordinates in 3d space and the cube as 1/8th of that

2nd part

total flux through faces opposite to point charge = q/8Îµ (because faces containing the charge have zero flux as angle between S and E is 90)
if one face then q/24Îµ