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Chapter 1 SEMICONDUCTOR DIODES MCQs

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1. . A semiconductor is formed by ……… bonds.





2. . A semiconductor has ………… temperature coefficient of resistance.





3. . The most commonly used semiconductor is ………..





4. . When a pure semiconductor is heated, its resistance …………..





5. . When a pentavalent impurity is added to a pure semiconductor, it becomes ………





6. . In a PN junction with no external voltage, the electric field between acceptor and donor ions is called a





7. . In a PN junction the potential barrier is due to the charges on either side of the junction, these charges are





8. . When PN junction is in forward bias, by increasing the battery voltage





9. . The p-region has a greater concentration of __________ as compared to the n-region in a P-N junction.





10. . Which of the below mentioned statements is false regarding a p-n junction diode?





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