Question

Consider `vec(E)=3xx10^(3) hat(i) (N//C)` then what is the flux through the square of `10 cm` side, if the normal of its plane makes `60^(@)` angle with the X axis.

Answer 1

`phi=ES cos theta=3 xx10^(3)xx[10xx10^(-2)]^(2)xx cos 60^(@)=3xx10^(3)xx10^(-2)xx ^(1)//_(2)=15 Nm^(2)//C`