The ohmmeter of a portable digital multi meter need:
Correct answer: A. Internal battery
- A. Internal battery
- B. Wet cell
- C. Voltmeter
- D. Ammeter
Explanation
The correct statement is A. Internal battery. A portable digital multimeter's ohmmeter function usually requires an internal battery to operate.
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About Current Electricity
Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
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