A point charge is placed 3 m from a 4 uC charge. What is the strength of the electric field on the point charge at this
distance? (Round to the nearest whole number.)

4000v/m

Explanation:

Explanation:

the information we have is:

distance:  

charge:

since the prefix is equal to

the charge is:

------------------

To calculate the strength of the electric field we use the following formula:

where is the charge, is the distance and is Coulomb's constant

substituting all the known values into the formula:

The strength of the electric field on the point charge at the distance of 3m is 4,000 N/C.

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .