for resistors in series, just add them up.
R = R1+R2+R3+,,,
for resistors in parallel, it all reciprocals
1/R = 1/R1 + 1/R2 + 1/R3 + ....
surely you have seen these formulas
A 15 Ohm resistor is in series with a 20 Ohm resistor and a 25 Ohm resistor. What is the equivalent resistance of these elements?
Do you add them all to get the equivalent resistance?
15+20+25= 60, or do you divide 60/3= 20? I'm not sure how to go about this problem.
5 answers
I haven't since my professor hasn't gone over these for electric circuits, but they're on my quiz, so that's why I asked.
hard to imagine a question on a quiz when it hasn't been covered in class ...
Yeah, it's a summer class, so he was going to show us part two of the electric circuits next week, but the quiz covers the whole chapter and it was due after we covered part one of the electric circuits. I don't know why he does this. I have to rely on a lot of outside sources to help me understand the material.
Update, my professor removed that question from the quiz, and others like it.
He just taught us this right now, and if anyone else is struggling with this problem it is 15+20+25= 60.
He just taught us this right now, and if anyone else is struggling with this problem it is 15+20+25= 60.