Physics 2, Lab 8

# Physics 2, Lab 8 - Physics Lab 8 Voltage Current and...

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Physics Lab 8: Voltage, Current, and Resistance II Joshua Budhu Lab Partner: Andrew Nouri Date Performed: 4/8/09 Date Due: 4/15/09

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Objective and Theory This lab is very similar to the previous lab, Voltage, Current and Resistance I , in that it builds upon the prior concepts and it advances the type of experiments that we will be doing. Part 2 Sketch the graph In this graph we can see that it is almost a straight line linear fit. Our a1 intercept was -0.02036 Our a2 slope of the line was 100.48. This means that our calculation for Ohm’s law is V=100.48I+(-0.02036), which is very close to V=100I, our expected result. Part 3
1) What do you think would happen if the voltage were swept very quickly? 2) Is the filament Ohmic? Explain 1) If the voltage were swept very quickly, the filament would appear to be an Ohmic resistor. This is because the filament would not have time to heat up, and since the heating is what causes its change in resistance, it will have roughly a constant resistance. 2) The filament was not Ohmic because its pattern was not linear – there were many

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## This note was uploaded on 03/07/2010 for the course PHYSICS V.Physics taught by Professor Hoggbudickadler during the Spring '10 term at NYU.

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Physics 2, Lab 8 - Physics Lab 8 Voltage Current and...

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