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    hey I had some homework to finish off from class.

    we took readings Ln I/mA vs Voltage and plotted a graph

    the gradient was around 20

    y axis being ln I
    The y intercept was about -10

    then for homework she asked us to finish off these questions.

    if -
    LnI = LnIo + BV/20

    V being voltage.

    How to work out LnIo and B using data we already have? Thanks
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    If you compare the formula given
    (ln I) = (\frac {B}{20}) V + (ln I_o)
    with that of a straight line
    (y) = (m)x + (c)
    then
    gradient = B/20
    intercept = ln I0
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    Thanks
 
 
 
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Updated: March 26, 2011

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