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GCSE Physics Resistance of a Wire

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• Essay length: 17024 words
• Submitted: 11/07/2002
GCSE Changing Materials - The Earth and its Atmosphere

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GCSE Physics Resistance of a Wire

Before starting my coursework I have decided to chose a factor that will affect the resistance of a wire.

I shall do this by going through all of the factors that affect the resistance of a wire and how I would

measuring each factor to find out which would be the most effective and easiest factor to measure.

Below is a list of factors and reasons why they affect the resistance of a wire. From this list of factors I

shall only pick one factor to investigate. To explain the how the factors would affect the resistance of a

wire I have drawn a diagram to show how resistance occurs.

WIRE

ATOMS=

ELECTRONS=

Resistance occurs when the electrons travelling along the wire collide with the atoms of the wire.

These collisions slow down the flow of electrons causing resistance. Resistance is a measure of how

hard it is to move the electrons through the wire.

Factors

1.Temperature : If the wire is heated up the atoms in the wire will start to vibrate because

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