In P-N junction, the barrier potential offerse resistance to
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barrier potential offer resistance to free electrons on p side and free holes in n side from diffusing from their original place
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In P-N junction barrier potential offers resistance to further movement of charge carriers across the junction
Explanation:
- P-N junction is the interface between p type and n type semiconductors
- When both semiconductors are fused together opposite charge carriers are attracted and move across the junction for example : electrons get attracted towards the holes in p type semiconductor and holes get attracted towards the electrons of n type semiconductor during this movement immobile charge carriers left behind
- The immobile charge carriers set up an imaginary potential across the junction and this potential is known as barrier potential
- This barrier potential blocks the further movement of charge carriers across the junction hence offers the resistance to the charge carriers
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