Posted: Tue May 16, 2006 9:45 pm
lol
Page 3 of 3
Posted: Tue May 16, 2006 9:52 pm
What are the resistors...resistances?
Posted: Tue May 16, 2006 10:39 pm
lol
Posted: Wed May 17, 2006 1:42 am
well doesnt a resistor change the voltage? 
Posted: Wed May 17, 2006 9:53 am
lol
Posted: Wed May 17, 2006 4:15 pm
Ok...
Series, voltage adds up, you're right. If you have two 9v cells, it would be 18v total. Now, because of resistors and whatnot, it would vary depending on where you test the voltage, but for total, you're right, you add them up.
Parallel, voltage is constant, it doesn't change. If you have two 9v cells pushing through a pure parallel circuit, you could have 9v or 18v, it depends on where the cells are and what the actuall circuit looks like.
Think of it this way, it's how I was taught:
Series: Voltage adds up, amperage is constant, resistance adds up.
Paralell: Voltage is constant, amperage adds up, resistance is the inverse of the sum of the inverses (wordy, but true).
But for your question, it's like I said before. Figure out the voltage for the parallel or the series part first, then figure it out for the other side.
Series, voltage adds up, you're right. If you have two 9v cells, it would be 18v total. Now, because of resistors and whatnot, it would vary depending on where you test the voltage, but for total, you're right, you add them up.
Parallel, voltage is constant, it doesn't change. If you have two 9v cells pushing through a pure parallel circuit, you could have 9v or 18v, it depends on where the cells are and what the actuall circuit looks like.
Think of it this way, it's how I was taught:
Series: Voltage adds up, amperage is constant, resistance adds up.
Paralell: Voltage is constant, amperage adds up, resistance is the inverse of the sum of the inverses (wordy, but true).
But for your question, it's like I said before. Figure out the voltage for the parallel or the series part first, then figure it out for the other side.