(a) Define 1 watt.   (b) State the commercial unit of electric energy. Express it in terms of SI uni
Channel: Doubtnut
Date: 12/04/2020

(a) Define 1 watt.   (b) State the commercial unit of electric energy. Express it in terms of SI unit of energy.   (c) An electric refrigerator rated as 750 W operates 8 hours per day. What is the cost  of the energy to operate it for the month of June at Rs. 2.50 per kWh ?