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PHYSICS
Quantum Electronics
Tunnel Diode
Tunnel diode harnesses quantum tunneling to achieve negative resistance in semiconductors
21 Jan 2026
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What causes the negative resistance region in the current-voltage characteristic of a tunnel diode?
Thermal excitation of electrons over the potential barrier
Quantum mechanical tunneling of electrons through the p-n junction barrier
Conventional conduction through the depletion region without tunneling
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PHYSICS
Quantum Electronics
Tunnel Diode
Tunnel diode harnesses quantum tunneling to achieve negative resistance in semiconductors
21 Jan 2026
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What unique electrical property of the tunnel diode is directly caused by quantum tunneling?
High forward voltage drop
Negative resistance
Zero current flow at all voltages
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