Question

Explain working of pn junction diode when forward biased

Answer 1

Answer:

Forward Biased PN Junction Diode

When a diode is connected in a Forward Bias condition, a negative voltage is applied to the N-type material and a positive voltage is applied to the P-type material. If this external voltage becomes greater than the value of the potential barrier, approx.

Answer 2

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A diode is said to be only when a p-type of diode is connected to positive terminal of the battery

n-type is connected to negative terminal of the battery.

• The applied potential opposes the barrier potential Vb.Due to this barrier potential considerably consideraly reduces with rise in the applied potential.
• Here majority charge carriers ,electrons in the n region are repelled by the negative terminal of the battery.
• Holes in the p region are repelled by the positive terminal of the battery.
• when the battery voltage exceeds the barrier voltage ,the majority carriers have enough energy to pas through the depletion region.

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