Question

16 Eo
4.
Two point charge, each of q, are kept at centre
of cube O and vertex A. Finde electric flux from shaded
​

Answer 1

the charge placed at the corner of the cube is shared by 8 other cubes

charge on the atom for 1 cube=q/8E•

in the cube this charge is attached to three faces

show the area vector of that side and the electric field vector will be perpendicular

hence the flux through the three sides will be zero

equal amount of flux will flow from the other three sides

show the flux flowing from one side will be equal to q/8E•/3

=q/E•24

total number of faces=6

the flux q/E• placed at the centre is shared between the six faces

flux 1 face=q/6E•

total flux=q/6E•+q/24E•=5q/24E•

I hope this helps

Answer 2

Answer:

Explanation:

fnet = f1 + f2

=

0 0

1q 1 q

6 38

æö æ ö ç÷ ç ÷ +

èø è ø Î Î

=

0

5 q

24 Î