The force per unit length between two parallel long current carrying conductor is F. If the current in each conductor is tripled, what would be the value of the force per unit length between them?

Explanation

To solve the problem, we need to understand how the force per unit length between two parallel current-carrying conductors is affected by the currents flowing through them. The formula for the force per unit length \( F/L \) between two parallel conductors carrying currents \( I_1 \) and \( I_2 \) is given by:

\[ \frac{F}{L} = \frac{\mu_0}{2\pi} \frac{I_1 I_2}{d} \]

where:
- \( F \) is the force between the conductors,
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