PROBLEM: For the circuit (see attach) find the potnetial difference between points a and b. Each resistor has R=75ohms and each battery is 1.5V.
MY ATTEMPT/CONFUSION: I'm getting really confused applying Kirchhoffs Rules because there are only two points and we want to find the difference between them, but they are technically the same on both sides.
So I know that because this is a series I will be constant, so I have added all of the R values (75 x 4) to find that V/R where v= (1.5+1.5) =3V yeilds
3/300 = .01 Amperes
then at each resister to find the potential its going to be IxR =.01 x 75 = .75V
I'm quite confused, this problem also seems really simple.
MY ATTEMPT/CONFUSION: I'm getting really confused applying Kirchhoffs Rules because there are only two points and we want to find the difference between them, but they are technically the same on both sides.
So I know that because this is a series I will be constant, so I have added all of the R values (75 x 4) to find that V/R where v= (1.5+1.5) =3V yeilds
3/300 = .01 Amperes
then at each resister to find the potential its going to be IxR =.01 x 75 = .75V
I'm quite confused, this problem also seems really simple.