Moving-coil galvanometer torque balance (nBAI = kθ (deflecting torque = restoring))
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nBAI = kθ (deflecting torque = restoring)
What each symbol means
| Symbol | What it stands for |
|---|---|
| k | Torsion constant of spring (N·m/rad) |
| n | Number of turns in coil |
| θ | Angular deflection |
When to use this
Radial field so torque nBIA is constant at angle; small θ linear response.