2 cells and three light bulbs insert a fuse that will break the circuit and all the bulbs won t work if there is a short circuit 3 marks a circuit with a cell and two light bulbs in parallel with each other part a multiple choice matching knowledge 20 marks part b problems thinking and inquiry 20 marks munication 14 marks making connections 14 marks circuit diagrams draw series and parallel circuits and calculate current voltage and resistance calculations using grass method r v i potential difference is the difference in potential energy per charge between two different points in an electric circuit here is a simpler explanation potential difference tells us how much energy per charge the electrons are losing when they pass through a resistor or how much they are gaining when they pass through the cell or battery

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