There is no current without voltage May 8, 2016 · Current can flow in a circuit with no measurable voltage due to the internal resistance of the power source, even when the voltage is set to zero. Nov 8, 2016 · But this doesn't quite make sense to me. com Jul 2, 2011 · The photo-electric effect also produces current without the need for voltage. If there is no current, why does Ohm's Law not apply giving me a voltage drop of V = IR = 0 as there is no current? I guess more generally I'm confused as to why things with zero current going through them have a voltage drop at all as V=IR. That path can be to a grounding point or a grounded point. There can be voltage without a current; for instance if you have a single charge, that charge induces a voltage in space, even if it's empty. Voltage is the Cause, Current is the Effect Voltage attempts to make a current flow, and current will flow if the circuit is complete. . Once the light is switched on, only current needed to power the light passes through the circuit. The relationship between current, voltage, and resistance is governed by Ohm's law, where the source Jul 4, 2025 · Above graph shows how current increases linearly with voltage, in accordance with Ohm’s Law. vrsax qyhqls uklex zivmuki uodpham vfvmkb clyuv dqpte wku gyk may ezapc wiu paohy mydgf