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MHT CET 2026 (15 Apr, Shift 1) · Moving Coil Galvanometer, Ammeter & Voltmeter

Moving Coil Galvanometer, Ammeter & Voltmeter question from MHT CET 2026 (15 Apr, Shift 1)

Q5MHT CET 2026 · 15 APR · SHIFT 1Easy

Moving Coil Galvanometer, Ammeter & Voltmeter

If a galvanometer is shunted by (1n−1)th\left(\frac{1}{n-1}\right)^{th} of the value of its resistance, then the fraction of the total current passing through the galvanometer is

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Answer: (b)

  1. Parallel division: IgI=SG+S\frac{I_g}{I} = \frac{S}{G + S}.
  2. With S=Gn−1S = \frac{G}{n-1}: IgI=G/(n−1)G+G/(n−1)=1(n−1)+1\frac{I_g}{I} = \frac{G/(n-1)}{G + G/(n-1)} = \frac{1}{(n-1) + 1}
  3. IgI=1n\frac{I_g}{I} = \frac{1}{n}
  4. So the answer is (b) 1n\frac{1}{n}.
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