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## Main Question or Discussion Point

A simple electric circuit (such as one composed of a battery with Emf V and resistor with resistance R) is in an electrodynamic state since the battery's potential difference creates an electric field in the circuit's wires, which in turn moves charges around. So potential difference in wires is non-zero, otherwise charges won't move at all.

The definition of Kirchoff's voltage law is that the sum of voltages in a closed loop should equal to zero.

How come when we use this formula during circuit analysis, we consider the potential difference in wires to be zero when in fact it is not due to the presence of an electric field in the wires ? Like for the same example of the battery and the resistance, we write directly: V-RI=0 ?

The definition of Kirchoff's voltage law is that the sum of voltages in a closed loop should equal to zero.

How come when we use this formula during circuit analysis, we consider the potential difference in wires to be zero when in fact it is not due to the presence of an electric field in the wires ? Like for the same example of the battery and the resistance, we write directly: V-RI=0 ?