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5 years ago
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Dustin Bechtelar
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The minimum positive voltage required to make current flow through it.
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These slides explain why a minimum potential difference is necessary:

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The threshold voltage of a diode is the minimum voltage required for the diode to conduct in the forwards direction.
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Click here to view my profile and arrange a free introduction.Threshold voltage of diode means when a diode has enough energy in it so that electric current passes through it easily
The minimum voltage needed for current to flow through the diode (for the diode to be switched on)
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