Acharge of uniform volume density (40 nc/m3) fills a cube with 8.0-cm edges. what is the total electric flux through the surface of this cube?

The flux through the surface of the cube is

Solution:

As per the question:

Edge of the cube, a = 8.0 cm =

Volume Charge density,

Now,

To calculate the electric flux:

                                                     (1)

where

= electric flux

= permittivity of free space  

Volume Charge density for the given case is given by the formula:

                 (2)

Volume of cube,

Thus

Thus from eqn (2), the total charge is given by:

Now, substitute the value of 'q' in eqn (1):

coil wire, increase current, put iron inside the coil

f=ma a/f/m a= 480/60 a = 8m/s/s that is quick wow