7. State the function of ‘a fuse’ in an electric circuit. An electric fuse of rating 3A is connected in a circuit in
which an electric iron of power 1.5 kilo watt is connected which operates at 220 V. What would happen?
Explain with numeric values.
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An electric fuse of rating 3A is connected in a circuit in which an electric iron of power 1kW is connected; which operates at 220V. ... This current is greater than the rating of the fuse (i.e. 3A). Hence, the fuse will melt and the circuit breaks. Therefore, electric iron will not work.
Here, P = 1 kW = 1000 W, V = 220 V
This current is greater than the rating of the fuse (i.e. 3A). Hence, the fuse will melt and the circuit breaks. Therefore, electric iron will not work.
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