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JEE Mains · Physics · STD 12 - 4. Moving charges and magnetism
A galvanometer is used in laboratory for the null point in electrical experiments. If, on passing a current of \(6 \,m A\) it produces a deflection of \(2^{\circ},\) its figure of merit is close to :
- A \(3 \times 10^{-3} A / div\)
- B \(333^{\circ} A / div\)
- C \(6 \times 10^{-3} A / div\)
- D \(666^{\circ} A / div\)
Answer & Solution
Correct Answer
(A) \(3 \times 10^{-3} A / div\)
Step-by-step Solution
Detailed explanation
Figure of Merit \(= C =\frac{ i }{\theta}\) \(= C =\frac{6 \times 10^{-3}}{2}=3 \times 10^{-3} Am ^{2}\)
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