Question

If electric field strength is force per charge, how could one find the force?A. Ohm’s lawB. Coulomb’s lawC. Joule’s lawD. Ampere’s law

Answer 1

$\begin{gathered} F=qE \\ so: \\ E=\frac{F}{q} \end{gathered}$

If F is the electrostatic force, we can find it using the following formula:

$F=k\cdot\frac{q1\cdot q2}{r^2}$

Which corresponds to the Coulomb's law

Answer:

B. Coulomb's law