Premium Online Home Tutors
3 Tutor System
Starting just at 265/hour

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?


Answer :

Both the bulbs are connected in parallel. Therefore, potential difference across each of them will be 220 V, because no division of voltage occurs in a parallel circuit.

Current drawn by the bulb of rating 100 W is given by,Power = Voltage × Current

Current = \(\frac{Power}{Voltage} = \frac{60}{220} A \)

Hence, current drawn from the line
\( = \frac{100}{220} + \frac{60}{220} = 0.727 A \)

NCERT solutions of related questions for Electricity

NCERT solutions of related chapters class 10 maths

NCERT solutions of related chapters class 10 science