what is the role of fuse used in series with any electrical appliance ?why should a fuse with defined rating not be placed by one with a larger rating?
Answers
in electrical appliances, the when heat increases the got melt and the circuit breaks down
A fuse is connected in series to prevent any short circuit or to discontinue the flow of charges in the circuit due to overloading. If excess current passes through circuit, it breaks the circuit and protects the appliance from getting damaged. A fuse is rated for a specific value of current.
Fuse is used for protecting appliances due to short-circuiting or overloading. The fuse is rated for a certain maximum current and blows off when a current more than the rated value flows through it.
If a fuse is replaced by one with larger ratings, the appliances may get damaged while the protecting fuse does not burn off. This practice of using fuse of improper rating should always be avoided.
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