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Homework Statement
I am supposed to determine the potential differences between the points. However, I thought circuits had to be closed...
So how then do I calculate potential difference without current?If there is no current, then no voltage is dropped across each resistor.
Yes, and if I=0?So how then do I calculate potential difference without current?
I'd usually use the formula V = I*R.
Well, then there would be no drop in voltage. Does this mean that the potential difference at all three points is the same?Yes, and if I=0?
Not quite. The battery will maintain a fixed potential difference regardless of current flow or not.Well, then there would be no drop in voltage. Does this mean that the potential difference at all three points is the same?
Yup.EDIT: Well I guess there would be current through R_{2}.
So then would the potential difference between A and B be 9 V, the difference between A and C be 9 V, and the difference C and B be 0 V?
How do you find potential difference across the two terminals of a battery when they aren't connected ?So how then do I calculate potential difference without current?