Three coplanar parallel wires, each carrying a current of 10 A along the same direction, are placed with a separation 5.0 cm between the consecutive ones. Find the magnitude of the magnetic force per unit length acting on the wires.

Explanation

To solve the problem of finding the magnetic force per unit length acting on three coplanar parallel wires carrying a current of 10 A each, we will follow these steps:

### Step 1: Understand the Configuration
We have three parallel wires (let's call them Wire 1, Wire 2, and Wire 3) that are separated by a distance of 5 cm (0.05 m) from each other. All wires carry the same current of 10 A in the same direction.

### Step 2: Use the Formula for Magnetic Force per Unit Length
The formula for the magnetic force per unit length \( F/L \) between two parallel wires is given by:

...