A galvanometer is used in laboratory for detecting the null point in electrical experiments. If, on passing a current of 6 mA it produces a deflection of 2o, its figure of merit is close to :
Solution
figure of merit = ${I \over \theta }$
<br><br>= ${{6 \times {{10}^{ - 3}}} \over 2}$
<br><br>= 3 $\times$ 10<sup>–3</sup> A/div
About this question
Subject: Physics · Chapter: Current Electricity · Topic: Ohm's Law and Resistance
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