CUET · PHYSICS · PYQ PAPER 2023
For an ammeter, voltmeter and galvanometer having resistances \( R_A, R_V \) and \( R_G \) respectively, the correct relation among these resistances:
- A \( R_A < R_G < R_V \)
- B \( R_A < R_G < R_V \)
- C \( R_A > R_G > R_V \)
- D \( R_A > R_G < R_V \)
Answer & Solution
Correct Answer
(C) \( R_A > R_G > R_V \)
Step-by-step Solution
Detailed explanation
\( R_A = \frac{R_G R_{sh}}{R_G + R_{sh}} \implies R_A \( R_V = R_G + R_s \implies R_V > R_G \) \( R_A < R_G < R_V \)
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