Current, Potential Difference and Resistance 3.0 / 5 based on 1 rating ? PhysicsD.C. ElectricityASAll boards Created by: ChloeGoslingCreated on: 04-01-13 13:06 Define Current The rate of flow of charge 1 of 11 What is current measured in Ampere, Amps, A 2 of 11 Symbol for Charge, Current and Time Charge- Q Current- I Time- t 3 of 11 What unit is Charge measured in and define it Coulombs, C, is the amount of charge that passes in 1 second when the current is 1 amp. 4 of 11 Equation for current, charge & time Q=It 5 of 11 Define Potential Difference/p.d/Voltage is the energy per unit of charge 6 of 11 What unit is Potential Difference/p.d/Voltage measured in and define it Volt, V, the p.d across a component is 1 volt when you convert 1 J of energy moving 1 C of charge through the component (1V=1JC^-1) 7 of 11 Equation for Voltage(V), Energy(W) and Charge(Q) V=W/Q 8 of 11 What has resistance? Everything 9 of 11 Define Resistance, R R=V/I 10 of 11 What unit is resistance measured in? Ohms, Ω 11 of 11

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