EVERYDAY SCIENCE

Detailed explanation-1: -Fuses. An electrical fuse is a device that sacrifices itself to provide over-current protection in an electrical circuit.

Detailed explanation-2: -Breaker Design: Basic The fuse is designed to disintegrate when it heats up above a certain level-if the current climbs too high, it burns up the wire. Destroying the fuse opens the circuit before the excess current can damage the building wiring.

Detailed explanation-3: -An electrical insulator is a material through which charge cannot flow easily. A metal wire is usually coated with plastic or rubber. The metal wire is an electrical conductor. The rubber and plastic are electrical insulators.

Detailed explanation-4: -When the current in the circuit exceeds the safety rating of the circuit breaker, the electromagnet releases a latch causing a spring to move the contacts in the circuit, stopping the flow of current.

Detailed explanation-5: -When the circuit switch is off, no electricity will flow and then the circuit is called an open circuit. Electricity will not flow in open circuit. Was this answer helpful?