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The drift current in a p-n junction is 2...

The drift current in a p-n junction is `20(mu)A.`Estimate the number of electrons crossing a cross section per second in the depletion region.

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Given Drift Current ` = 20muA`
` = 20xx10^(-6)A.`
Both holes and electrons are moving
So,number of electrons
`(20xx10^(-6))/(2xx1.6xx10^(-19)) = 6.25xx10^13`
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HC VERMA-SEMICONDUCTOR AND SEMICONDUCTOR DEVICES-exercises
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  2. The potential barrier exists across the junction is 0.2volt.What minim...

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  3. In a p-n junction,a potential barrier of 250 mev exsists across the ju...

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  4. When a p-n junction is reverse-biased,the current becomes almost const...

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  5. The drift current in a p-n junction is 20(mu)A.Estimate the number of ...

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  6. The current-voltage characteristic of an ideal p-n junction diode is g...

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  7. Consider a p-n junction diode having the characteristic i=i0(e^(eV//kT...

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  8. Calculate the current through the circuit and the potential difference...

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  10. Find the current through the resistance in the circuits shown in figur...

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  13. Find the current through the resistance R in figure.If (a)R=12 Omega(b...

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  14. Draw the current-voltage characteristics for the device shown in figur...

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  15. Find the equivalent resistance of the network shown in figure

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  16. When the base current in a transistor is changed from 30 mu A to80 mu ...

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  17. A load resistor of 2 k Omega is connected in the collector branch of ...

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  18. Let X=A bar(BC)+B bar(CA)+C bar(AB).Evalute X for (a)A=1,B=0,C=1 ...

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  19. Design a logical circuit using AND, OR and NOT gate to evaluate A bar(...

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  20. Show that AB+bar(AB) is always 1.

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