Electricity part two - definitions 0.0 / 5 ? PhysicsElectricityGCSEAQA Created by: Cat91Created on: 17-06-18 09:45 Current The flow of charged particles. The symbol I is used to show them and they're measured in Amps (A) 1 of 7 Electron Smallest thing we know of, inside and atom, has a negative charge. 2 of 7 Ohm The unit used for electrical resistance, named after Georg Ohm. 3 of 7 Ohm's Law The formula used to calculate p.d, current and, resistance. V=IR. 4 of 7 Potential difference The amount of electrical energy taken to move a charge between two points. Measured in volts (V) 5 of 7 Resistance Stops the flow of charge 6 of 7 Resistor The physical thing that you put into a circuit to stop the flow of charge 7 of 7
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