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

(a) Differentiate between AC and DC. Write any two points of difference. (b) A person operates a microwave over of 2kW power rating in a domestic circuit of 220 V and current rating 5A. What result is expected? Explain with reason. (C ) Write the frequency of AC and DC.

An air-conditioner of 3.2 kW power rating is connected to a domestic electric circuit having a current rating of 10 A. The voltage of power supply is 220 V. What will happen when this air-conditioner is switched on ? Explain your answer.

The power rating of an electric motor that draws a current of 3.75 A , when operated at 200 V , is nearly

In a household electric circuit different appliances are connected in parallel on one another . Give two reasons. An electrician puts a fuse of rating 5 A in that part of domestic electricity ciruit in which an electric heater of rating 1.5 K W, 220 V is operating. What is likely to happen in this case and why? What change , if any, needs to be made?

An electric kettle consumes 1 kW of electric power when operated at 220 V . A fuse-wire of what rating must be used for it ?