Electrical energy II - JSS3 Basic science Past Questions and Answers - page 2

A fuse acts as a safety device in an electrical circuit by breaking the circuit if there's too much current flowing through it, thus preventing damage to appliances or fires.

Fuses and circuits work together to maintain electrical safety. Fuses monitor the flow of electricity within circuits and break the circuit if the current exceeds a safe level, preventing overheating and potential hazards.

An electric meter is usually installed outside of a home and measures the amount of electricity consumed by the household, typically in kilowatt-hours (kWh).

When a fuse blows, it interrupts the flow of electricity in the circuit, effectively disconnecting it. This prevents further damage to appliances or wiring caused by excessive current flow.

Electric meters provide utility companies with data on the amount of electricity consumed by a household, allowing them to accurately bill customers for their usage.

Fuses contribute to electrical safety by preventing overheating and potential hazards in circuits. They achieve this by breaking the circuit if the current exceeds a safe level, thus protecting appliances and wiring from damage.