Question

Potential barrier developed across a p-n junction in junction diode
opposes the flow of :
(A) only electrons in p-region
(B) electrons in n-region and holes in p-region
(C) only holes in n-region
(D) electrons in p-region and holes in n-region
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Answer 1

Answer:

c. is the right answer.

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Answer 2

Answer:

When an electron (majority carrier) from n-region, tries to cross the junction, the negative charge of the barrier (in p-region) opposes the electron (whereas helps the hole) and electron is stopped by this barrier's negative plate. Same happens with a hole in p-region.

Explanation:

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