Interaction Between Two Parallel Current-Carrying Wires

This point is part of the HSC Physics syllabus Module 6: Electromagnetism under the Motor Effect.

The interaction between two parallel current-carrying wires is a magnetic interaction which depends on the following factors:

F = \frac{\mu_o I_1 I_2 L}{2 \pi R}

B = \frac{\mu_o I}{2 \pi R}

The force on a single wire:

F = BIL sin(\theta)

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