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Physics Practical > Resistance And Length > Flashcards

Resistance And Length Flashcards

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1
Q

Variables

A

Independent is length of wire.
Dependant is resistance of wire.
Controlled variables are temperature and area of cross section of wire.

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2
Q

Apparatus

A

Low voltage power supply unit
Rheostat
Ammeter
Voltmeter
Connecting leads
Resistance wire
Switch
Metre ruler

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3
Q

Method

A
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4
Q

Relationship

A

Directly proportional.
R = kL
K = R / L

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