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Home » Ask Physics » In a pn junction, if diffusion current equals drift current, then why is there a potential barrier?
“In a [wiki]pn junction[/wiki], if diffusion current equals drift current, then why is there a potential barrier?”
Ans: When a [wiki]diode [/wiki]conducts, there is no [wiki]potential barrier[/wiki]
Tags: Ans, ask Physics, barrier, diode, physics
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