Diode - Diode objective questions and answers


6. The turn-on voltage of a Ge junction diode is


   A.1.0 V

   B.0.3 V

   C.0.7 V

   D.0.1 V


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B.0.3 V

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7. When biased correctly, a zener diode


   A.Never overheats

   B.Has a constant voltage across it

   C.Has a constant current passing through it

   D.Acts as a fixed resistance


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B.Has a constant voltage across it

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8. In reverse biased diode, as the reverse voltage decreases the depletion region


   A.Remains same

   B.Decreases

   C.Increases

   D.Depends on doping


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B.Decreases

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9. The Ge diodes can be operated upto a temperature of the order of


   A.600C

   B.1000C

   C.1500C

   D.2800C


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B.1000C

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10. The forward region of a semiconductor diode characteristic curve is where diode appears as


   A.An OFF switch

   B.A capacitor

   C.A constant current source

   D.An ON switch


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D.An ON switch

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