MCQ
When a $12 \Omega$ resistor is connected with a moving coil galvanometer then its deflection reduces from 50 divisions to 10 divisions. The resistance of the galvanometer is
- A$24 \Omega$
- B$36 \Omega$
- ✓$48 \Omega$
- D$60 \Omega$
✓
Answer
Correct option: C.
$48 \Omega$
(c) $i_g=\frac{i S}{S+G} \Rightarrow 10=\frac{50 \times 12}{12+G} \Rightarrow 12+G=60 \Rightarrow G=48 \Omega$
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