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Investigate the resistance if 12 volt bulb when the current changes.
Member rating: No Rating | Words: | Submitted: Mon Nov 10 2003
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Aim: to investigate the resistance if 12 volt bulb when the current changes. Prediction: I predict that as the current increases the temperature of the lamp will also increase; therefore the resistance will also increase. I know this because I have read it in the AQA syllabus. Plan Safety: I need to ensure the safety of myself and others by making sure that the experiment is conducted accurately and safely. ? Apparatus should be placed in a safe place and put away safely. ? Electrical plugs should be switched off after use. ? The area should be kept dry and taps should be switched off. Variables: I will only be changing the current by moving the variable resistor. I will repeat the experiment twice so that I can be sure of my readings and see if anything has changed or gone wrong. I will take 12 readings at 0.1 amps intervals. Apparatus: o...
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