Q.15:- Two lamps, one rated 100 W at 220 V, and the other 60 W at 220 V, are connected in parallel to electric mains supply. What current is drawn from the line if the supply voltage is 220 V?
Both the bulbs are connected in parallel. Therefore, potential difference across each of them will be same that is 220 V, Current drawn by the bulb of rating 100 W is given by
Similarly, current drawn by the bulb of rating 60 W is given by
∴ the total current drawn from the line =0.4545+0.2727=0.727A
TutionTeacher: Know free answers of your school textbook. You can find the correct answer of your School textbook question here. This education portal will help in getting the NCERT solutions for your exams. Here you will get the complete question answer and solution of your textbook for your better education. Your can also ask for online study and assignment help from menu. Online test series will also help you how to learn and achive better marks in your school or collage.