With the help of which device is potential difference measured?
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A.
Rheostat
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B.
Ohm meter
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C.
Ammeter
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D.
Voltmeter
Correct Answer:
D. Voltmeter
Explanation:
Potential difference, or voltage, is measured using a voltmeter. This instrument is connected in parallel with the electrical component or circuit section being tested to determine the difference in electric potential between two specific points. While an ammeter measures current and an ohmmeter measures resistance, the voltmeter is specifically designed with high internal resistance to ensure it does not significantly alter the circuit's current while providing an accurate voltage reading.
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