An electric immersion heater is connected to a 230 V mains supply
PHYSICS · Multi-part · CBSE · Physics · Current Electricity · Current Electricity
Problem
An electric immersion heater is connected to a 230 V mains supply. During a certain period, a total charge of 54 000 C passes through the heater.
(a) Calculate the electrical work done on the water by the heater in joules.
(b) Express this energy in kilowatt-hours.
(c) If electrical energy costs Rs 6.00 per kilowatt-hour, find the cost of operating the heater for the given period.