Electrical Engineering XYZ MCQs
The rating of fuse wire is always expressed in:
- Amperes
- Ampere-volts
- KWh
- Ampere-hours
Correct answer: 1. Amperes
Explanation: The correct answer is “Amperes.”
The rating of a fuse wire is always expressed in Amperes (A). This indicates the maximum current that the fuse can safely carry without blowing or melting. The purpose of a fuse is to protect an electrical circuit by breaking the circuit when the current exceeds the rated value, preventing damage to the connected devices or the wiring.
Ampere-volts (Ampere-volt) is not a standard unit for expressing the rating of a fuse wire. Ampere-hours (Ah) is a unit used to measure the capacity of a battery, not the rating of a fuse. Kilowatt-hours (KWh) is a unit of energy consumption and is not relevant to the rating of a fuse wire.