Asked by Michele
This question makes no sense to me. . .
A 100-watt lamp glows brighter than a 25-watt lamp. What do you know about the resistances of these two lamps?
????
That they have different watts...thats all I can think of. Physics is not my strong subject.
A 100-watt lamp glows brighter than a 25-watt lamp. What do you know about the resistances of these two lamps?
????
That they have different watts...thats all I can think of. Physics is not my strong subject.
Answers
Answered by
drwls
The power that a lamp produces is
P = V^2/R
Since both lamp blubs are made to operate at the same voltage V, the lamp with more power must have a lower value of R. In this case,the 100W bulb has 1/4 the resistance of the 25W bulb.
P = V^2/R
Since both lamp blubs are made to operate at the same voltage V, the lamp with more power must have a lower value of R. In this case,the 100W bulb has 1/4 the resistance of the 25W bulb.
Answered by
Will
What does 60Hz, 120V electricity mean? Name a device that produces DC electricity. I didn't understand
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.