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With interments of reverse bias, the tunnel current also increases because________(a) electrons move frombalance band of pside to conduction band of nside(b) fermi level of pside becomes higher than that of nside(c) junction currrent decreases(d) unequality of n and p bandedgeThis question was posed to me during an interview.I'm obligated to ask this question of Tunnel Diodes and its Characteristics in chapter Semiconductor-Diode Characteristics of Electronic Devices & Circuits

Answer»

Correct choice is (a) electrons move frombalance band of pside to conduction band of nside

For explanation I would say: When the forward bias is increased, the tunnel CURRENT is also increased upto a certain limit. This happens when the ELECTRON movement TAKES place from P to N side.



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