
Semiconductor Electronics Quiz-2
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Popular Questions In Semiconductor Electronics Quiz-2
An a.c voltage of peak value 10 V is connected in series with a silicon diode a load resistance of . The forward resistance of the diode to . The peak output voltage across the load resistance will be:
The semiconductor used for fabrication of visible LEDs must at least have a band gap of
Intensity of light emitted by LED depends on
Colour of the light emitted by LED depends on
If x, y and z are lengths of the emitter, base, and collector of a transistor then:
In a junction transistor, the current gain in CB configuration is 0.99. If input resistance is and load connected to collector is , then voltage gain in CE configuration will be:
In a transistor the current amplification ‘’ is 0.9. The change in collector current when base current changes by 4 mA is
Is an n–p–n transistor electrons enter emitter in 80 . The current gain α of transistor is 0.95. The number of electrons flowing in the base expressed as a percentage of electrons entering emitter is
The transfer ratio of a transistor is 50. The input resistance of the transistor when used in the common emitter configuration is . The value of collector current for a peak value of input a.c voltage of 0.01 is
A signal of 30 mV is applied to a common emitter transistor amplifier circuit. Due tothis the change in base current and the change in the collector current are and 2 mA respectively. The load resistance is . The transconductance of the transistor is