A house is served by 220 V supply line in a circuit protected by a 9 ampere fuse. The maximum number of 60 W lamps in parallel that can be turned on, is A) 44 B) 20 C) 22 D) 33
Answers (1)
power
2202
60
806.66 ohm
v
Resistanceofcircuit
let n bulbs are in parallel, then net resistance is
1
806.66
33 bulbs
24.44
220
24.44 ohm
9