A fuse can protect the conductors in both a series and parallel circuit.
A fuse or circuit breaker used in a circuit is usually inserted in series with the load.
It is a circuit fuse in a vehicle. The fuse is used to protect the courtesy/clock circuit.
Fuse, screw in or plug, circuit breaker, fuseable link
Fuse is used to protect against over load. The fuse blows off if there is overloading in the circuit. This prevents the flow of current in the circuit beyond the position of the fuse. The equipment which is overloaded in the circuit is thus saved.
Circuit breaker or a fuse
If a thick copper wire is used in a fuse then by definition of a fuse this device would no longer be defined as a fuse. A fuse in a circuit is used to protect the conductors feeding the load of that circuit. The circuit, if using a thick copper wire in a fuse, would then be considered as a non fused circuit.
A fuse is used to protect the wiring within a circuit from overheating and possibly catching on fire. When the circuit is overloaded or a short is detected the fuse will blow shutting off power to that circuit.
Fuse
A fuse/breaker is used to protect the wiring within the home for overheating and catching on fire. When the fuse/breaker detects an excess flow of current beyond the range of the fuse/breaker, within a circuit, it will blow/trip to shut off the flow of electricity in that circuit thus preventing a possible fire.
The fuse is matched to the size wire in the circuit the breaker/fuse it is protecting. For instance, a 20 amp breaker/fuse is used in combination with AWG 12/2 wire. A 15 amp breaker/fuse would be used with AWG 14/2 wire. If there is too much current flow in the circuit caused by either overloading the circuit or by a short in the wires the wiring would overheat and catch fire if not for the breaker/fuse. The breaker/fuse is designed to detect this and to trip or blow and shut off all power flowing to that circuit and prevent a fire. This is why you should never install the wrong size fuse. Put a 20 amp fuse on a 15 amp circuit and it would not protect the circuit as it should.
difference between p type and n type semiconducter materialAnswerInsulation is used to prevent a short current. To protect the circuit should a short-circuit fault occur is either a fuse or a circuit breaker.
What Causes Any Fuse to "Blow?"The cause is what fuses were invented and are used for:to detect and protect against SHORT CIRCUIT conditions, and /or CIRCUIT OVERLOAD conditions.