Question

an electric charge Q is placed at one of the corners of a cube of side a . The electric flux through 6 faces of cube

Answer 1

Answer:

if an object of 7 cm heght is placed at a distance of 12 cm from a convex lens of focal length 8 cm foind the position,nature and height of image

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Answer 2

Answer:

ACCORDING TO THE GIVEN PROBLEM, THE CAHRGE IS PLACED AT THE CORNER OF THE CUBE AS SHOWN IN FIGHURE_1,

NOW CONSIDER THE ANOTHER FIGURE_2 IN WHICH THE WHOLE CHARGE IS ENCLOSED IN THE FOUR SUCH CUBE,

NOW CALCULATING THE FLUX THROUGH THE ALL CUBES AS TOTAL:

ϕ

e

=

ϵ

0

q

=EA

WHERE A=6∗(2a)

2

FOR ONLY ONE SIDE OF FIRST CUBE,

AREA WILL BE A

0

=a

2

FROM ABOVE DATA FLUX THROW THE SINGLE FACE (AREA = A

0

) IS GIVEN BY:

ϕ

e

=

ϵ

0

Q

=EA

0

WHERE Q=

24

q

SO THE FLUX THROUGH THROUGH THE SINGLE FACE IS

24ϵ

0

q

;