In class, you found that the potential differenceVADandVBCwere small, but not zero.
Why are they not zero?
Consider the strength of the electric field through a length of wire, like the portion labeled BC or AD in the circuit above. What will happen to the strength of the electric field in the wires if both of those wires are shortened?
We know that theoretically the sum of the voltages over each segment of a complete circuit should sum to zero. Why, in lab, is it possible/likely that the sum of the voltages over each segment did not exactly equal zero?
