A fuse is nothing more than a short length of wire designed to melt and separate in the event of excessive current. Fuses are always connected in series with the. When the fuse opens, it should stop all electrical flow, preventing fire or The fuse melts before anything else does, breaking the circuit and. They detect a difference in the current between the live and neutral wires. RCDs work much faster than fuses do. For the examination, you do not need to know.
A fuse provides a built-in fail-safe to the electrical circuit for a device. The fuse contains a thin wire that will melt if the current gets too high. If there is a fault that . Demonstration Model a fuse using fine strands of steel wool. Too large a current causes the steel fibres to heat and melt, breaking the circuit. Apparatus and. Topics include atomic and nuclear physics, electricity and magnetism, heat transfer, Fuses. Most plugs have 13A written on them. This means that they are fuse or a circuit breaker (you need to be able to explain how each of these works!).
A fuse works by melting and breaking a circuit if the current gets too big. Fuses are essentially ﬁre breaks, points of deliberate weakness that, if power surges through a house's electrical system, will collapse to. In order to prevent excessive currents flowing into the home circuit, electrical appliances and its cables, fuses and circuit breakers are wired into the live wire and.
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