Physics Unit 2: Electricity 5.0 / 5 based on 1 rating ? PhysicsElectricityGCSEAQA Created by: grxcewxlkerCreated on: 20-03-18 20:49 Equation for Charge Flow Charge Flow= current x time taken (Q=I x T) 1 of 8 Equation for Potential Difference Potential Difference= current x resistance (V=I x R) 2 of 8 Equation for Power (1) Power= current x potential difference (P=I x V) 3 of 8 Equation for Power (2) Power= current^2 x resistance (P=I^2 x R) 4 of 8 Equation for Energy Transferred Energy Transferred= charge x potential difference 5 of 8 Equation for Power (3) Power= energy / time 6 of 8 Equation for Efficiency Efficiency = output power / input power x100% 7 of 8 Equation for Output Power Output Power = efficiency x input power 8 of 8
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