Determining resistivity of a wire practical
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Determining resistivity of a wire practical

[From: ] [author: ] [Date: 11-12-23] [Hit: ]
voltmeter and ammeter. Record the voltage and current for different lengths of the wire. Put all of these length, voltage and current values into a table and Use V=IR to find the resistance of each of the wire readings. use a micrometer screw guage to record the diameter of the wire and work out the cross sectional area with it, you will use this value in the resistivity equation.......
I am looking for 'determining resistivity of a wire' experiment .. I searched everywhere but I can't seem to find.. I need the procedure for it.. it is for my lab report..

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Connect the test wire into a circuit containing a battery, voltmeter and ammeter. Record the voltage and current for different lengths of the wire. Put all of these length, voltage and current values into a table and Use V=IR to find the resistance of each of the wire readings. use a micrometer screw guage to record the diameter of the wire and work out the cross sectional area with it, you will use this value in the resistivity equation.

Then make a graph of resistance against length and use the gradient in the equation resistivity = (resistance* area) / length
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