The current that must flow through a galvanometer to have a deflection of 1 division on its scale is called

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meter sensitivity

micro sensitivity

figure of merit

voltage sensitivity

answer is A.

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Detailed Solution

Detailed Solution :

The current that must flow through a galvanometer to produce a deflection of 1 division on its scale is called the "sensitivity" of the galvanometer. It is a measure of the smallest detectable change in current that the galvanometer can measure. Sensitivity is typically expressed in terms of the current required to produce a full-scale deflection, such as "1 milliampere per division" or "1 microampere per division". The sensitivity of a galvanometer is an important parameter for many applications, especially in measuring small electrical currents or voltages.

In a moving cell galvanometer, we use a radial magnetic field so that the galvanometer scale is linear.

Hence, the correct option is C

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