What is the magnitude of the electric field at the point if the electric potential in the region is given by V 2.00xyz2, where V is in volts and coordinates x, y, and z are in meters?

Electric field at a point ( x , y , z) is .

Explanation:

Given :

Electric potential in the region is ,

We need to find the electric field .

We know , electric field ,  { Here r is distance }

In coordinate system ,

 { is partial derivative }

Putting all values we get ,

Hence , this is the required solution.

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.