An electrician puts a fuse of rating 5 A in that part of domestic electrical circuit in which an electrical heater of rating 1.5kW , 220V is operating .What is likely to happen in this case and why? What change if any needs to be made?
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Answered by
6
Answer:
the current drawn by 1.5 kw heater at 220 volts will be (1.5/1000)/220 = 6.8 Amp.
5A fuse will blow off on switching on the power.
Electrician needs to replace the fuse with 10 A fuse.
Answered by
17
Answer:
The above amount of current is greater than the rated value of fuse current. Hence, the fuse will melt and break the circuit.
Please refer to the above attachment.
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