Physics
Grade-7
Easy
Question
When excess current flows through the wire, it shows
- Chemical effect of electric current
- Heating effect of electric current
- Both the effect
- None of these
Hint:
Heating effect of electric current
The correct answer is: Heating effect of electric current
When an electric current passes through a wire the wire gets heated. This is known as the heating effect of current.
If too much current flows, the fuse wire rises to a higher temperature and melts, thus opening the circuit but destroying the fuse.
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