Answer:
The discovery that one current-carrying wire exerts a force on a second current-carrying wire was made by Ampere
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:
[tex] F= \frac{\mu _o}{2\pi} \frac{I_1I_2}{r}l[/tex]
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.
