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//Chapter 1, Problem 8
clc;
E=1.8*10^6; //energy consumes by electric heater
T=30*60; //time in seconds
V=250; //supply voltage
P=E/T; //calculating power rating of the heater
printf("Power rating of heater = %f kW \n\n\n",P/1000);
I=P/V; //calculating current taken from the supply
printf("Current taken from supply = %f A \n\n\n",I);
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