What reading indicates a good fuse when checked with an ohm meter?

What reading indicates a good fuse when checked with an ohm meter?

• A. The line voltage
• B. Zero ohms
• C. Infinity
• D. At least 10 ohms

Answer: (B)

When checking a fuse with an ohm meter, a reading of zero ohms indicates that the fuse is good and functioning properly. This reading signifies that there is continuity through the fuse, meaning that it can effectively conduct electricity without any resistance. A good fuse should allow current to flow freely, and thus the resistance measured across its terminals should be negligible, resulting in a reading close to zero. In contrast, a reading of infinity would suggest that the fuse is open or blown, meaning it has failed to complete the circuit. A line voltage reading does not apply in this context, as it measures voltage rather than resistance. Lastly, a reading of at least 10 ohms implies some level of resistance, which would indicate a potential problem with the fuse, as it should ideally show little to no resistance to be considered good.

When checking a fuse with an ohm meter, a reading of zero ohms indicates that the fuse is good and functioning properly. This reading signifies that there is continuity through the fuse, meaning that it can effectively conduct electricity without any resistance. A good fuse should allow current to flow freely, and thus the resistance measured across its terminals should be negligible, resulting in a reading close to zero.

In contrast, a reading of infinity would suggest that the fuse is open or blown, meaning it has failed to complete the circuit. A line voltage reading does not apply in this context, as it measures voltage rather than resistance. Lastly, a reading of at least 10 ohms implies some level of resistance, which would indicate a potential problem with the fuse, as it should ideally show little to no resistance to be considered good.