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GUJCET · Physics · Moving Charges and Magnetism
The defletion in moving coil galvanometer falls from 50 divisions to 10 divisions, when a shunt of \(12 \Omega\) is connected with it. The resistance of galvanometer coil is _________.
- A \(6 \Omega\)
- B \(48 \Omega\)
- C \(24 \Omega\)
- D \(12 \Omega\)
Answer & Solution
Correct Answer
(B) \(48 \Omega\)
Step-by-step Solution
Detailed explanation
B
\(S=\frac{G}{n-1}\)
\(\begin{aligned} \therefore & G = S (n-1) \\ \therefore & G =12(5-1) \\ \therefore & \quad\left(\because n=\frac{50}{10}=5\right) \\ \therefore & =48 \Omega\end{aligned}\)
\(S=\frac{G}{n-1}\)
\(\begin{aligned} \therefore & G = S (n-1) \\ \therefore & G =12(5-1) \\ \therefore & \quad\left(\because n=\frac{50}{10}=5\right) \\ \therefore & =48 \Omega\end{aligned}\)
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