IIT JEE , AIEEE Forum - Physics , Electricity - physic

nvcjava

what is total flux pasing througha a plane of having sides of 10 cm each, when a 10 micro ferrade charge is placed 5 cm away and on on the normal passing through the center of the plane.

its_ankit007

acc. to gauss law: Electric Flux= q/

₀. The charge can be assumed to be at the centre of a cube of side 10 cm. Then electric flux through each plane will be q/6

₀. Put the values.

edison

First of charge doesn't have units of micro farad it must be micro coulomb.

Now consider cube of side 10cm enclosing the charge of 10 micro coulomb at the centre which is at a distance 5cm from each of the sides.

Now applying gauss's law of electrostatics

Electric Flux passing through the cube = q/

₀.

But by symmetry of the problem the flux is equidistributed through each sides.

Thus flux through the square plate of side 10cm = q/6

₀

or flux = 10^(-6)/6

₀.

its_ankit007

thats what i had written earlier but you were right on the unit.

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