A 220 v, 1000w bulb is connected across a 110 v mains supply. the power consumed will be

Asked by swatipjadhav7 | 1st Sep, 2020, 11:01: AM

Expert Answer:

Rating of the electric bulb is given as, 
Vrating =  220 V 
Prating =  1000 W  
R= V2 rating /Prating =  220 2 / 1000= 48.4 Ω
When this bulb of resistance  48.4 Ω is connected to 110 V main supply, 
the power consumed is, 
P = V2 /R = 1102 / 48.4  = 250 W

Answered by Shiwani Sawant | 1st Sep, 2020, 11:29: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.