Force per unit length between parallel currents (F/L = μ₀I₁I₂/(2πd))
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F/L = μ₀I₁I₂/(2πd)
What each symbol means
| Symbol | What it stands for |
|---|---|
| d | Separation between parallel wires (m) |
When to use this
Long straight parallel wires; force per length on one due to the other's field.