Meters and troubleshootingQuestion 315 of 1506

What resistance should a meter have when it is in the current-measuring mode?

  1. About 1 MΩ
  2. Practically zero
  3. Equal to the load
  4. Infinite
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Correct answer: Practically zero

Low resistance keeps the meter from changing the circuit current.

Source: Troubleshooting Motors and Controls (Dickson-Self), 1.3: Meter Usage

Practice meters and troubleshooting

Questions last reviewed: 18 October 2026