Question
Why do we need fuses? What can be used instead of a fuse? [2 MARKS]
Answer:
:
Fuses: 1.5 Marks
Alternative: 0.5 Marks
Electrical fuses are wires made from special materials that melt quickly and break when large electric current is passed through them.
There is a maximum limit of current which can safely pass through the circuit.
When a large amount of current passes through the circuit it may cause damage to various electric appliances.
The appliances may also catch fire due to short-circuit.
So, fuses are used for safety purposes.
MCBs can be used instead of fuses.
Was this answer helpful ?
:
Fuses: 1.5 Marks
Alternative: 0.5 Marks
Electrical fuses are wires made from special materials that melt quickly and break when large electric current is passed through them.
There is a maximum limit of current which can safely pass through the circuit.
When a large amount of current passes through the circuit it may cause damage to various electric appliances.
The appliances may also catch fire due to short-circuit.
So, fuses are used for safety purposes.
MCBs can be used instead of fuses.
Was this answer helpful ?
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