Two long and parallel straight wires A and B carrying currents of `8*0A` and `5*0A` in the same direction are separated by a distance of `4*0cm`. Estimate the force on a `10cm` section of wire A.

Explanation

To solve the problem of estimating the force on a 10 cm section of wire A, we will use the formula for the magnetic force between two parallel currents. Here are the steps:

### Step-by-Step Solution:

1. **Identify the Given Values:**
- Current in wire A, \( I_1 = 8 \, \text{A} \)
- Current in wire B, \( I_2 = 5 \, \text{A} \)
- Distance between the wires, \( r = 4.0 \, \text{cm} = 0.04 \, \text{m} \)
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