Question

How much will be the power of a 220v,100 w electric bulb working at 110 v?

Answer 1

Answer:

wat

Explanation:

Answer 2

☺Hey guys ☺

Answer = 25 w

Given -----------

V = 220

P = 100 w

To find

The power of the voltage is 110 v .

Solution ------------

First calculate the resistance of the electric bulb .

Power of electric bulb is given by ---------

P = V2 / R ( 2 Ko small me likhna V ke upar )

Put the given value ,

100 = ( 220 ) 2 / R

100 R = 220 × 220

100 R = 48,000

R = 48,000 / 100

R = 484

Now , If the voltage becomes 110v

Now , if the voltage becomes

110v Then,

R = 484

P = ( 100 ) 2 / 484

P = 12 ,100 / 484

P = 25 w

Hence ,

The New Power will be 25 watt .