Question

Testing the Electric Field
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.)
5

Answer 1

Answer:

The strength of the electric field on the point charge at this distance is 4000 N.

Explanation:

The electric field strength is determined using the formula$E=\frac{kQ}{d^{2} }$

Thus, field strength is directly proportional to the charge of the charge and inversely proportional to the square of the distance between them. In the above equation, Q is the charge and d is the distance, k is the constant 9×$10^{9}$

So, the electric field strength will be

$E=\frac{9*10^{9} *4*10^{-6} }{9}=4*10^{3} =4000 N$

So the electric field strength is 4000 N.