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    Physics A-Level

    Photocurrent against voltage at fixed irradiance

    What Photocurrent against voltage at fixed irradiance means in Physics A-Level, as defined for AQA.

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    A characteristic curve plots current against voltage for several fixed irradiances, and in reverse bias each irradiance gives a near-horizontal line whose magnitude is the photocurrent.
    AQA · Photodiode (A-level only) (study guide)

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