Final answer:
The ohmmeter reading across a good fuse that is removed from the circuit should show very low resistance, typically close to zero ohms, indicating that the fuse provides a proper conduction path and is in working condition.
Step-by-step explanation:
The ohmmeter reading across a good fuse that is removed from the circuit, will be a reading indicating very low resistance, typically approaching zero ohms. A fuse is designed to serve as a protective device in an electrical circuit, and in its normal, functional state, it provides a conduction path with minimal resistance. When a fuse blows or burns out due to an overcurrent condition, it creates an open circuit with infinite resistance. Therefore, to verify the condition of a fuse, it should be removed from the circuit and tested with an ohmmeter to ensure it is providing an easy path for electrical current, which is what a good fuse would do.
Using an ohmmeter to check for fuses is consistent with standard electrical diagnostic practices. The ohmmeter measures the resistance of the fuse, and a good, intact fuse should show a resistance reading close to zero, confirming its ability to carry current. This is because a fuse serves as a safeguard, designed to melt and sever the circuit if the current exceeds safe levels to prevent damage to the rest of the circuit.