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To investigate whether the two resistors and the bulb given is an ohmic or non-ohmic conductor.
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Ohmic Conductors (ELC) Physics Portfolio By Clement Ng 12.6 Aim: To investigate whether the two resistors and the bulb given is an ohmic or non-ohmic conductor. Method: - Arrange apparatus as shown in the below circuit diagram - Replace R with the tested unknown resistor or bulb - Adjust the variable power supply until volt meter reads of consecutive even numbers, 2, 4, 6...12 - In each case, record down the corresponding current value on the amp meter - After the first set of readings are collected, redo the experiments to obtain some check readings - Repeat method until all the two resistors and the bulb is tested - Using the results, calculate the averages and plot graphs of V against I, remember to include the error bars - Using the graphs, work out the max/min/normal gradients and calculate the resistance for each item. Remember to specify the error in the final resistance value by using the max/min gradient values. -...
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