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Results for “Torque”

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Electromagnetism & Electronics

Magnetic Dipole Moment

A vector quantity determining the torque experienced by a magnetic dipole when placed in an external magnetic field.

μ = I A, U = -μ · B A·m² (or J/T) Electromagnetism & Electronics

Moving Coil Galvanometer, Ammeter & Voltmeter

An electromechanical instrument that measures small currents using magnetic torque on a pivoted coil, converted to an ammeter or voltmeter…

τ = N I A B = k θ; Ammeter: S = I_g G / (I - I_g); Voltmeter: R_s = (V / I_g) - G A (Current), V (Voltage)