Question

If an electric field is given by 10i+3j+4k,calculate the electric flux through a surface of area 10 units lying in yz plane

Answer 1

see attachment....hope it will help u.

Answer 2

Answer:

The electric flux is 100 units.

Explanation:

Let us consider some OA and BC be any area which is lying on the yz plane

Therefore  

Area of vector A=10i

Hence vector E=10i+3j+4k

We know that the flux=vector E x vector A

We also know that the area of the vector is perpendicular to the area of plane.

Therefore the area of vector E x vector A = 0

Now the net electric flux is due to the 10i

Net flux= vector E x vector A

Vector E=10i+3j+4k vector A=10i

Net flux=10i+3j+4k x 10i

=100+0+0

=100 units