Home Physics Moving Charge and Magnetism The Moving Coil Galvanometer To use the galvanometer as an ammeter, what …
Physics Moving Charge and Magnetism The Moving Coil Galvanometer MCQ (Single Correct)

To use the galvanometer as an ammeter, what additional component should be connected, and how should it be connected?

A
A resistor in series to limit the current.
B
A high-resistance in parallel to measure high currents.
C
A low-resistance (shunt) in parallel to allow most of the current to bypass the galvanometer.
D
An inductor in series to increase current sensitivity.

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The correct answer is:
C

To use a galvanometer as an ammeter, a low-resistance, known as a shunt resistor, must be connected in parallel with the galvanometer. This allows most of the current to bypass the galvanometer, preventing it from being damaged by the high currents it is measuring.

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