- #1
salman213
- 302
- 1
Hi I have a pretty simple question
I was just looking at my FAN and was wondering what is the difference between putting it on 1 (low) and on 3 (high).
Obviously it runs faster on 3 and therefore I assume it requires more energy.
If V = I*R
V stays the same right? 120 V? through the outlet?
If that is true, I was thinking R increases since it needs more to go faster and is at a higher impedance.
But that would mean CURRENT goes down to maintain the same voltage?
That doesn't make sense. I would think current increases but the impedance doesn't go down...
can someone explain?? thanks
I was just looking at my FAN and was wondering what is the difference between putting it on 1 (low) and on 3 (high).
Obviously it runs faster on 3 and therefore I assume it requires more energy.
If V = I*R
V stays the same right? 120 V? through the outlet?
If that is true, I was thinking R increases since it needs more to go faster and is at a higher impedance.
But that would mean CURRENT goes down to maintain the same voltage?
That doesn't make sense. I would think current increases but the impedance doesn't go down...
can someone explain?? thanks