Observe and record the brightness, voltage difference (the potential difference between two points in a circuit) and current of lamps respective to its changed circuit (parallel or series circuit).

... Potential Difference Experiment Aim To observe and record the brightness, voltage difference (the potential difference between two points in a circuit) and current of lamps respective to its changed circuit (parallel or series circuit). An ammeter is used to measure the current of the circuit (in amperes). A voltmeter used to measure the voltage (in volts). Because the voltage used for this experiment is constant, truthful conclusions are able to be drawn. Hypothesis It should be noted that an electric cell (like the one we used in our experiment) can make electrons move but only if there is a conductor connecting to terminals. Chemical reactions cause electrons to move from the negative to positive side. As the electrons flow through the bulb they make the thin wire in the bulb (also known as the filament) heat up causing it to glow. This path from the switches to wires to bulbs to battery

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