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Forum: Analog Circuits Why high current in forward bias of PN Junction?


von Lernend B. (Company: KAI Electro Semiconductor Inc.) (lernend05)


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Hi all,
Recently I have read something, as we know current always flow through a 
closed path, then how does a current flows through a pn junction 
diode?because electrons from n when moves to p, then as in moves deeper 
in p region many electrons recombine , so the electrons coming back to 
the +ve terminal of the battery to form a closed loop is very low ... 
then why get high current in forward bias?

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