When two parallel wires carry electric currents, they exert a force on each other. This force is attractive if the currents are in the same direction and repulsive if they are in opposite directions. The magnitude of the force is proportional to the product of the currents and inversely proportional to the distance between the wires. This principle is fundamental in understanding electromagnetism and its applications. Let's dive in! 🧲
Match the terms with their definitions:
| Term | Definition |
|---|---|
| 1. Ampere | a. The force per unit length between two parallel wires. |
| 2. Permeability of Free Space | b. The flow of electric charge. |
| 3. Current | c. A fundamental constant relating magnetic field strength to current. |
| 4. Force per unit length | d. The SI unit of electric current. |
| 5. Parallel Wires | e. Two conductors positioned equidistant from each other at all points. |
Complete the following paragraph:
The force between two parallel wires is __________ proportional to the product of the __________ and __________ proportional to the distance between them. If the currents flow in the same direction, the force is __________, and if they flow in opposite directions, the force is __________. The constant of proportionality involves the __________ of free space.
How does the force between parallel current-carrying wires relate to the operation of electric motors? Explain your reasoning.
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