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Pregunta 298

Which of the following can damage a multimeter?

  1. Attempting to measure resistance using the voltage setting
  2. Failing to connect one of the probes to ground
  3. Attempting to measure voltage when using the resistance settingRespuesta correcta
  4. Not allowing it to warm up properly

Explicación

In the resistance range the meter supplies its own small test current and expects to see only that; applying external circuit voltage to those low-current input circuits can destroy them. The reverse case, being on a voltage range while probing a resistor, is harmless because voltage ranges present high impedance and expect applied voltage.

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Pregunta 298: Which of the following can damage a multimeter? · FCC Technician Class (Element 2) · Questena