In the "What is alternating current (AC)?" page (http://www.allaboutcircuits.com/vol_2/chpt_1/1.html), I believe there may be a mistake in the analogy between mechanical geartrains and transformers.
The way the article is written portrays high speed/low torque as analogous to high current/low voltage. I believe it should be the other way around, since voltage is more related to speed than torque.
For instance, a taser does not kill even though its voltage is massive - because the current (amps) is very low. In other words, the speed is very high and the torque is very low. But a standard housefold current of "only" [compared to a taser] 240V will kill because the current is relatively massive.
I think the images should be reordered on that page.
Cheers!
The way the article is written portrays high speed/low torque as analogous to high current/low voltage. I believe it should be the other way around, since voltage is more related to speed than torque.
For instance, a taser does not kill even though its voltage is massive - because the current (amps) is very low. In other words, the speed is very high and the torque is very low. But a standard housefold current of "only" [compared to a taser] 240V will kill because the current is relatively massive.
I think the images should be reordered on that page.
Cheers!