Answer:
a.Electric force exerted on one charged sphere, by another charged sphere.
Step-by-step explanation:
Coulomb's Law describes the electric force between two objects. It is given by the following formula:
![\vec{F} = (1)/(4\pi\epsilon_0)(q_1q_2)/(r^2)\^r](https://img.qammunity.org/2021/formulas/physics/college/o0tbjpohqha0ywf6cixaezblldx8v5mvsd.png)
The magnetic field surrounding a current carrying conductor is described by Ampere's Law.
Amount of heat generated by a high current flow in a resistor can be described by P = VI
Voltage induced in a coil by a constant magnetic field is described by Faraday's Law.