Fuse of 3A, 5A and 10A are available. Calculate and select the fuse for operating electric iron of 1 kW power at 220 V line.
Fuse of 3A, 5A and 10A are available. Calculate and select the fuse for operating electric iron of 1 kW power at 220 V line.
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Power rating of electric iron = 1 kW = 1000 W
V=220 V
P=VI
I=P/V=1000/220
=4.55 A
Hence, a fuse of rating 5A can be used because it can bear the current.
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