What is the total potential difference around any closed loop of a circuit?

In the context of a closed circuit, Kirchhoff's Voltage Law states that the total potential difference around any closed loop is equal to the sum of the potential differences across all components in that loop. In an ideal scenario with no energy losses, this means that the total potential difference must equal zero. As electricity moves around the loop, the energy supplied by sources (like batteries) is balanced by the energy used by circuit components (like resistors, capacitors, etc.).

This principle implies that the energy gained (or voltage increase) from sources must equal the energy lost (or voltage drop) across loads, resulting in a net potential difference of zero when considering the complete loop. This can be visualized as all the energy provided by sources being completely consumed by loads with none excess.

Therefore, the total potential difference around any closed loop of a circuit is indeed zero volts in an ideal scenario.