Overload & short circuit: Domestic circuits (Part 3) | Physics | Khan Academy
Channel: Khan Academy India - English
Date: 2020-03-16

Overload happens when current exceeds a safe value. Sometimes this happens due to voltage spikes. Attaching too many devices is also a very common cause. Sometimes there is a short circuit. A short circuit is when a very low resistance path is created, causing enormous amounts of current. For example, when a live wire touches a neutral wire, it creates a short circuit. 
Overload protection and short circuit protection can be done by using an electric fuse. 
More free lessons & practice https://www.khanacademy.org/science/in-in-class10th-physics/in-in-magnetic-effects-of-electric-current

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Created by Mahesh Shenoy