CUET · PHYSICS · PYQ PAPER 2023
Two galvanometers have identical characteristics. One of them is converted into a milliammeter and the other into a microammeter. The shunt resistance of microammeter as compared to milliammeter will be :
- A same
- B less
- C more
- D zero
Answer & Solution
Correct Answer
(C) more
Step-by-step Solution
Detailed explanation
To convert a galvanometer into an ammeter, a shunt resistance \((S)\) is connected in parallel. The required shunt value is inversely proportional to the current range ( \(I\) ): \(S \approx \frac{I_g G}{I}\) Since a microammeter measures a much smaller current range than a…
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