Calculating the cost!!Electricity and Magnetism Level 3
A toaster runs on voltage \(250 V\) and current \(1 A\).Toaster is used for 30 days, daily for 30 minutes. An electric heater is operated on voltage \(300 V\) and current \(1.5 A\). The heater is used for 30 days daily for 50 minutes. Rate of electrical energy is 4 per kWh. Calculate the cost of electrical energy.