Question:
Which of the following instruments is \textit{NOT} a direct reading instrument?
Which of the following instruments is \textit{NOT} a direct reading instrument?
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Direct reading instruments give the measurement directly, while other instruments like potentiometers require additional calculations.
Updated On: Jan 27, 2026
- Voltmeter
- Ammeter
- Electronic balance
- Potentiometer
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The Correct Option is D
Solution and Explanation
Step 1: Understanding direct reading instruments.
Direct reading instruments give the value of the quantity being measured directly on a scale or display without requiring additional calculations. Examples include voltmeters, ammeters, and electronic balances.
Step 2: Potentiometer behavior.
A potentiometer is not a direct reading instrument. It is used to compare voltages, and it requires an additional calculation to find the voltage of the unknown source.
Step 3: Conclusion.
The correct answer is (D) Potentiometer, as it is not a direct reading instrument.
Direct reading instruments give the value of the quantity being measured directly on a scale or display without requiring additional calculations. Examples include voltmeters, ammeters, and electronic balances.
Step 2: Potentiometer behavior.
A potentiometer is not a direct reading instrument. It is used to compare voltages, and it requires an additional calculation to find the voltage of the unknown source.
Step 3: Conclusion.
The correct answer is (D) Potentiometer, as it is not a direct reading instrument.
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