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    Hey guys

    Hope you can help! I'm new here and just wanted to clarify a question I have.

    I have a physics question for homework and I have had to plot a graph of Resistance (y axis) against Length (x axis) for a piece of metal that has different resistances depending on the distance between the volt meters terminals. and to find a gradient. and give the unit of the gradient.

    Any ideas what the gradients unit would be. I thought possibly Ohm/m (not OhmM)

    It can't be Ohm directly because that obviously is used, by deriving it with algerbra I get Resistance over Length.... Ohm/m, its also a constant as the graph is a strait line.

    Thanks

    J
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    yeh it'd be ohm / m

    as when working out the length you'r dividing resistance by meters.
    • Thread Starter
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    Thanks for the quick reply, probobly sounded like a stupid question. You know when you think about something so much it suddenly seems wrong.

    Thanks Again
 
 
 
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