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To find out what happens in the filament of a bulb as we increase the voltage through the bulb.
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Physics Investigation Aim: To find out what happens in the filament of a bulb as we increase the voltage through the bulb. I am carrying out an experiment to find the different resistances and currents created by a light bulb at different voltages. Because of the nature of a light bulb, it glows white-hot when fully on, the resistance will change at different voltages. When the voltage is low and the bulb is not very bright, it won't be as hot and therefore it will have less resistance. But when the current is high and the bulb is brighter, it will have a high resistance. I will be using the following circuit for the experiment: Definitions: Ammeter: This is a device that measures the current of electrons in Amps. It has to be placed in series on the circuit. Voltmeter: This is a device for measuring the potential difference of the electrons in the circuit....
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