A student wishes to connect two appliances

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

Problem

A student wishes to connect two appliances, a room heater labelled "1000 W, 220 V" and an electric iron labelled "750 W, 220 V", to the same 220 V socket through a multi-plug adapter. (i) Find the total current that will flow when both appliances operate simultaneously. (ii) Standard miniature circuit breakers (MCBs) for sockets are rated at 6 A, 10 A or 16 A. Choose the correct MCB rating for safely operating the two appliances together and give a reason. (iii) If the student unknowingly uses only a 6 A MCB for this connection, describe the sequence of events that will occur after switching on both appliances.

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