Two appliances

PHYSICS · Multi-part · CBSE · Physics · Electricity · Electricity

Problem

Two appliances, a heater rated 1100 W,  220 V1100\,\text{W},\;220\,\text{V} and an iron rated 660 W,  220 V660\,\text{W},\;220\,\text{V}, are connected in parallel to the mains supply of a house. (i) Calculate the total current drawn when both appliances are working properly. (ii) The heater develops an open circuit fault (its element breaks). Calculate the current now drawn from the mains and state whether the iron continues to operate. Give a reason. (iii) Would the situation be different if the two appliances had been connected in series? Explain briefly.

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