A point charge q is placed at one corner of a cubicalbox. Find the total flux associated with that box .

A point charge q is placed at one corner of a cubicalbox. Find the tot

1.	A point charge q is placed at one corner of a cubicalbox. Find the total flux associated with that box .
Answer» Solution :If q is placed as hsown , seven moreidentical cubes are required to enclose , that charge completely. Then the total fluxthrough all faces of 8 cubes is`(q)/(in_(0))`. Nowcontribution of thisflux through each cube( INCLUDING thegiven one ) is `(q)/(8 in_(0))`. Here it is interesting to note thatthe faces whichhave common edgeon whichthegiven chargeis kepthave no flux and the flux `(q)/(8in_(0))` EMERGES through theremaining three faces fo the cube .