IGCSE Physics: Electricity 0.0 / 5 ? PhysicsElectricityIGCSEEdexcel Created by: iammeCreated on: 29-02-16 11:01 Current in a resistor results in... an electrical transfer of energy and a rise in temperature. 1 of 11 Watta (P)= Amps (I) x Volts (V) 2 of 11 Energy trnaferred in Joules (E)= current in amps (I) x potential differences in volts (V) x time in seconds (t) 3 of 11 AC and DC stands for... alternating current and direct current. 4 of 11 DC flows in... one direction. 5 of 11 AC current constantly... changes direction. 6 of 11 If you put more lamps into a series circuit... the lamps will be dimmer than before. 7 of 11 In a series circuit, if a lamp breaks or a componant is disconnected... the circuit is broken and all the componants stop workng. 8 of 11 Series circuits are useful if... you want a warning that one of the componants has broken or you need to use less wiring. 9 of 11 In a parralel circuit, if a lamp breaks or a componant is disconnected from one parrallel wire... the componants on the other branches keep working. 10 of 11 If you add more lamps in parallel to a series circuit... the lamps maintain te same brightness. 11 of 11
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