5. Resistivity

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9 Terms

1
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apparatus

ammeter

voltmeter

crocodile clips

wire

ruler

2
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what we are finding out

resitivity of constantan wire

3
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IV

length of wire

4
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DV

current through wire

5
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CV

voltage

wire material

6
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Gradient

R / L , resistivity = A x grad

7
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safety

wire can become too hot

8
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error

close switch between readings so temp doesn't change

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graph

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