Fuse - GCSE Physics Definition
Reviewed by: Caroline Carroll
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A fuse is a safety device used in electrical circuits to prevent excessive current flow that could cause overheating or fire. It consists of a thin wire or metal strip that melts and breaks the circuit when the current surpasses a certain level, typically due to a fault or overload. This action interrupts the flow of electricity, protecting both the circuit and connected devices from damage. Fuses are rated by current, and selecting the correct fuse for a particular appliance or circuit is crucial for safety. In GCSE Physics, understanding how fuses work is important for grasping concepts related to electrical circuits and safety measures.
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