Exercise: Electronic Devices And Circuits

Questions for: Electronic Devices And Circuits

The emission of light is LED due to
A:
emission of holes
B:
emission of electrons
C:
generation of electromagnetic radiations
D:
conversion of heat energy into illumination
Answer: C
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Which of the following exhibits negative resistance in a portion of its characteristics?
A:
Tunnel diode
B:
Zener diode
C:
JFET
D:
MOSFET and tunnel diode
Answer: A
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The resistivity of intrinsic semiconductor material is about
A:
105 ohm-m
B:
103 ohm-m
C:
100 ohm-m
D:
1 ohm-m
Answer: D
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Transconductance characteristics of JFET depict the relation between
A:
ID and VGS for different value of VDS
B:
ID and VDS for different value of VGS
C:
VGS and VDS for different values of ID
D:
VDS and ID for different values of VGS
Answer: A
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Materials in order of decreasing electrical conductivity are
A:
aluminium, silver, gold, copper
B:
gold, silver, copper, aluminium
C:
copper, silver, gold, aluminium
D:
silver, copper, gold, aluminium
Answer: D
No answer description is available. Let's discuss.
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