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  Thursday 16 October 2025 / 01:43 PM

A Galvanometer Has a Resistance of 25 Ω and Indicates Full‑Scale Deflection When a Current of 4 mA Flows Through It.

This example explains how a galvanometer full scale deflection occurs with a current of 4 mA. It is important for Class 12, NEB, and CTEVT Physics exams.

galvanometer full scale deflection

Given

Resistance of galvanometer, R = 25 Ω
Full‑scale current, I = 4 mA = 0.004 A

Concept

A moving coil galvanometer shows full‑scale deflection when the current through its coil produces maximum torque that balances the restoring torque. The current that produces this maximum deflection is called the full‑scale deflection current.

Note:

Sensitivity of the galvanometer is defined as the deflection per unit current and depends on the coil and magnetic field.

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A Galvanometer Has a Resistance of 25 Ω and Indicates Full‑Scale Deflection When a Current of 4 mA Flows Through It.

Keywords

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Tags

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A Galvanometer Has a Resistance of 25 Ω and Indicates Full‑Scale Deflection When a Current of 4 mA Flows Through It.

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