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Physical electronics devices and ics miscellaneous

Physical Electronics Devices and ICs

  1. In an unbiased PN-junction, the junction current at equilibrium is—
    1. Due to diffusion of minority carriers only
    2. Due to diffusion of majority carriers only
    3. Zero, because equal but opposite carriers crossing the junction
    4. Zero, because no charges are crossing the junction
Correct Option: C

In an unbiased PN-junction the junction current at equilibrium is zero, because equal but opposite carriers crossing the junction.



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