A BULB IS RATED 220V-100W , NOW WHAT WILL BE IT'S POWER WHEN CONNECTED TO 110V?
Asked by
| 10th May, 2008,
05:11: PM
Expert Answer:
Here V = 220V , P = 100W
We know that P = V2/R
So R = V2 /P
= (220 x 220) / 100
= 484 ohm
Now when V = 110V, R = 484ohm
P = V2/R = (110 x 110 )/ 484 = 25 W.
regards
toppersexpert
Answered by
| 26th May, 2008,
01:51: AM
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