Question

The discovery that one current-carrying wire exerts a force on a second current-carrying wire was made by _________. Coulomb Oersted Faraday Ampere

Answer 1

The discovery that one current-carrying wire exerts a force on a second current-carrying wire was made by Ampere

Step-by-step explanation:

Two current carrying wires exert force on each other. This was discovered by Ampere. It is also known as Ampere's force law.

A current carrying wire produces magnetic field around it. Another current carrying wire kept nearby experiences magnetic force by the first one.

The force is given by:

`F= (\mu _o)/(2\pi) (I_1I_2)/(r)l`

where I₁ and I₂ are the currents in the two wires and r is the distance between them.

The force may be attractive or repulsive depending upon the direction of current flowing in the two wires.

Answer 2

All of the choices were physicists, but the answer was Ampere. The discovery that one current-carrying wire exerts a force on a second current-carrying wire was made by Andre-Marie Ampere.