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GCSE Physics Resistance of a Wire

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  • Essay length: 17024 words
  • Submitted: 11/07/2002
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    The first 200 words of this essay...

    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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