when using an ohmmeter to measure resistance in a circuit, the circuits source power must be\na lowered.\nb…

when using an ohmmeter to measure resistance in a circuit, the circuits source power must be\na lowered.\nb increased.\nc disconnected.\nd flowing normally.
Answer
Brief Explanations:
When using an ohmmeter to measure resistance, the circuit's source power must be disconnected. This is to prevent the circuit's power - source from interfering with the ohmmeter's internal power source and giving inaccurate readings or potentially damaging the ohmmeter.
Answer:
C. disconnected