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In an unblased p-n junction, holes diffu...

In an unblased p-n junction, holes diffuse from the p - region to n- region because

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The concentration of holes in p- region is more than that in n- region in an unbiased p-n junction .As a result holes diffuse from- region which has higher concentration of holes to n- region which has lower concentration of holes .
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MODERN PUBLICATION-SEMICONDUCTOR ELECTRONICS METERIALS DEVICES AND SIMPLE CIRCUITS -NCERT FILE SOLVED (TEXT BOOK EXERCISES )
  1. Which of the statements given in above example is true for p - type se...

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  2. Carbon silicon and germanium have four valence electrons each these ...

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  3. In an unblased p-n junction, holes diffuse from the p - region to n- r...

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  4. When a forward bias is applied to a p -n junction. It

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  5. For transistor action which of the following statement are correct (...

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  6. For transistor amplifier the voltage gain (a) remains constant for ...

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  7. In half - wave rectification, what is the output frequency, if the ...

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  8. For a CE -transistor amplifier the audio signal voltage across the col...

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  9. Two amplifiers are connected one after the other in series (cascaded)....

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  10. A p-n photodiode is fabricated from a semiconductor with band gap of...

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  11. The number of silicon atoms per m^(3) is 5xx10^(28). This is doped sim...

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  12. In an intrinsic semiconductor, the energy gap E(g) of an intrinsic sem...

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  13. In a p-n junction diode, the currect I can expressed as I=I(0) exp((eV...

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  14. You are given two circuits as given below show that circuit (a) acts ...

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  15. Write the truth table for a NAND gae connected as given in the follow...

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  16. Why are elemental dopants for Silicon or Germanium usually chosen fro...

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  17. Sn, C, Si and Ge are all group XIV elements . Yet , Sn is a conductor ...

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  18. Can the potential barrier across a p-n junction be measured by simply ...

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  19. Draw the output wave form across the resistor

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  20. The amplifiers X, Y and Z are connected in series. If the voltage gain...

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