An electric heater uses 600 kJ of electrical energy in 5 minutes. Calculate its power rating.

An electric bulb consumes 7.2 kJ of electrical energy in 2 minutes. What is the power of the electric bulb?

An electric heater working at 230 V produces 1000 J energy in one second. Calculate the heat generated by it when it works for 5 minute.

An electric heater working at 230 V produces 1000 J energy in one second. Calculate the resistance of the heating coil used in it.

An electric heater is rated at 2 kW. Electrical energy costs Rs 4 per kWh. What is the cost of using the heater for 3 hours?

An electric heater takes 6A current from a 230V supply line, calculate the power of the heater and electric energy consumed by it in 5 hours.

An electric heater is rated 1500 W. How much energy does it use in 10 hour?

An electric heater draws a current of 5 A when connected to 220 V mains. Calculate the resistance of its filament.