You have two light bulbs: One with resistance R1 and one resistance R2. Assume R1 > R2.
A) Which bulb is brighter if connected in series. Explain.
B)Which bulb is brighter if connected in parallel. Explain.
4 answers
I will gladly critique your thinking, when any is shown.
Well I was thinking:
A) Since the bulbs are in series, the R1 is going to be brighter than R2, because it has less resistance.
B) The bulbs will have the same brightness, because when the bulbs are parallel, they both receive the same voltage.
Also, I don't fully understand this resistance thing. Can you please explain?
A) Since the bulbs are in series, the R1 is going to be brighter than R2, because it has less resistance.
B) The bulbs will have the same brightness, because when the bulbs are parallel, they both receive the same voltage.
Also, I don't fully understand this resistance thing. Can you please explain?
Brightness means power.
Power= V^2/R= I^2R
in series, they have the same current. Which then has generates more power?
In parallel, they have the same voltate, which has more power?
Power= V^2/R= I^2R
in series, they have the same current. Which then has generates more power?
In parallel, they have the same voltate, which has more power?
so from what I understood, in parallel, R2 will be the brightest. and in series R1 will be the brightest?
2 answers