An eletric oven of 2kW power rating is operated in a domestic electric circuit (220 V) that has a current rating of 5A. What result do you expect ? Explain.

Explanation

The current draw by this electric oven.
`I = (P)/(V)`
` = (2000W)/(220V)`
Since the current rating of the circuit is 5A, the fuse used in this circuit is only of 5A capacity .
Hence , when the oven is switch ON, the fuse wire (rated 5A) will get heated too much , melt and break the circuit . This will save the electric oven from getting damged .
[ If fuse of currrent rating more than 9.09 A is used in the circuit or if no fuse has been put in the circuit , there may be a fire ].