An electric iron of 1kw is operated at 220V. Find which of the following fuses that respectively rated ay 1A,3A and 5A can be use in it
Answers
Answered by
580
For us to get the fuse that is suitable, we must get the total current flowing through the circuit.
The formulae to get this is :
Power(watts) =Voltage(volts) ×current(amps)
In this case power=1000watts, votage=220v
Current =1000/220=4.55A
The suitable fuse is 5A since it is slightly above the current flowing through the circuit.
The formulae to get this is :
Power(watts) =Voltage(volts) ×current(amps)
In this case power=1000watts, votage=220v
Current =1000/220=4.55A
The suitable fuse is 5A since it is slightly above the current flowing through the circuit.
Answered by
297
Data:
P = 1 kW = 1000 W
V = 220 V
We have to calculate the fuse that can be used for operating the electric iron.
Solution:
We know that,
I = P/E
Where, I is the current, P is the power and E is the electromotive force in volts.
Substituting the values, we get:
I = 1000/220
I = 4.54 A
Rounding off the above value:
I = 5A
which shows that a fuse of 5 A can be used to operate the electric iron.
Hopefully it helps. Thanks.
P = 1 kW = 1000 W
V = 220 V
We have to calculate the fuse that can be used for operating the electric iron.
Solution:
We know that,
I = P/E
Where, I is the current, P is the power and E is the electromotive force in volts.
Substituting the values, we get:
I = 1000/220
I = 4.54 A
Rounding off the above value:
I = 5A
which shows that a fuse of 5 A can be used to operate the electric iron.
Hopefully it helps. Thanks.
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