Drift and Diffusion Currents in Semiconductors in less than 2 min | Electronic Devices and Circuits

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In this video we are going to see about Drift and Diffusion Current in Semiconductors. This is the topic of the Electronic devices and circuits.
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[@electronics-ed]

Timestamps
Diffusion Current: 0:05
Drift Current: 1:00

[@tomasruiz3777]

sir, i have a question, if theres no external voltage applied in the semiconductor, is there diffusion current?

[@electronics-ed]

Yes, there is diffusion current in a semiconductor even if there is no external voltage applied. Diffusion current is caused by the movement of charge carriers from a region of higher concentration to a region of lower concentration. This movement occurs because the charge carriers are randomly moving and more likely to move from a region where they are more concentrated to a region where they are less concentrated.

[@tomasruiz3777]

@@electronics-ed sorry sir, my mistake, i was talking about drift current

[@ssmmss1139]

yes, do you have an exam ?
@@tomasruiz3777

[@christosvasiliou219]

drift current depends on an applied voltage. The diffusion happens due to less quantity of carriers (holes, electrons) on the n and p-type. Diffusion is something natural@@tomasruiz3777

[@rahulpatel-cs6jv]

Yess

[@jaspreetkaur8121]

Thank you so much

[@electronics-ed]

You're most welcome

[@physical3049]

thank you 💗

[@electronics-ed]

You're welcome 😊

[@JesifaRemyaXI-B]

Thank you 😊

[@electronics-ed]

You're welcome 😊