MHT CET · Physics · Current Electricity
Two galvanometers ' \(\mathrm{G}_{1}\) ' and ' \(\mathrm{G}_{2}\) ' require \(2 \mathrm{~mA}\) and \(3 \mathrm{~mA}\) respectively to produce the same deflection. Then
- A \(\mathrm{G}_{1}\) and \(\mathrm{G}_{2}\) are equally sensitive.
- B \(\mathrm{G}_{1}\) is more sensitive than \(\mathrm{G}_{2}\).
- C \(\mathrm{G}_{1}\) is less sensitive than \(\mathrm{G}_{2}\)
- D sensitivity of \(G_{2}\) is \(\frac{3}{2}\) times that of \(G_{1}\).
Answer & Solution
Correct Answer
(B) \(\mathrm{G}_{1}\) is more sensitive than \(\mathrm{G}_{2}\).
Step-by-step Solution
Detailed explanation
\(S \propto \frac{1}{I}\) \(\frac{S_1}{S_2} = \frac{I_2}{I_1} = \frac{3 \mathrm{~mA}}{2 \mathrm{~mA}} = \frac{3}{2}\)
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