Homework Help: physics

Posted by brad on Wednesday, February 20, 2013 at 10:32pm.

the total potential difference from point A to point B in a circuit is +5 V. The total potential difference from point A to point C in a circuit is -16 V. What must be hte potential difference from point B to point C?

physics - JJ, Thursday, February 21, 2013 at 1:08pm
A - B = +5

A - C = -16

Do between B-C we must have -21

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