Answered

When is it important to match the polarity of the meter leads to the polarity of the circuit being tested?

A. When reading AC voltage
B. With all readings
C. When reading DC voltage
D. When reading resistance



Answer :

Final answer:

Matching polarity of meter leads is crucial for accurate DC voltage readings in a circuit.


Explanation:

Matching the polarity of the meter leads to the circuit being tested is important specifically when reading DC voltage as it ensures that the meter will provide an accurate reading based on the direction of the current flow.

When the polarity of the meter leads matches the circuit's polarity, the meter will display a positive reading for a forward voltage drop and a negative reading for a reverse voltage drop, providing meaningful information about the circuit's behavior.

Incorrect polarity matching can lead to erroneous readings, affecting the accuracy of the measurements and potentially causing damage to the meter or the circuit.


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