Q73. Calculate the rate at which energy is transferred by a 220 V mains supply, which provides a current of 0.1 A to an LED?Physics — Current Electricity — Question 73 of 484A. 2.2 WB. 2.2 kWC. 22 kWD. 22 W Practice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →