Rankers Physics

Power of Electrical Circuit: Practice Problem & Solution

Which of the following acts as a circuit protection device? (2019)
Conductor
Inductor
Switch
Fuse

Solution Explained:

To solve this problem, we apply the core principles of Power of Electrical Circuit. Understanding the underlying formula is key to arriving at the correct answer below:

A fuse is a safety device containing a low melting point wire that melts and breaks the circuit when excess current flows through it, protecting appliances.

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