Exercise: Electronic Devices And Circuits

Questions for: Electronic Devices And Circuits

Resistivity of carbon is around
A:
10 to 70 m-ohm-cm
B:
80 to 130 m-ohm-cm
C:
800 to 1300 m-ohm-cm
D:
8000 to 13000 m-ohm-cm
Answer: C
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Which of the following characteristics of a silicon p-n junction diode make it suitable for use as ideal diode?
  1. It has low saturation current.
  2. It has high value of cut in voltage.
  3. It can withstand large reverse voltage.
  4. When compared with germanium diode, silicon diode shows a lower degree of temperature dependence under reverse conditions.
Select the answer using the given below
A:
1 and 2
B:
1, 2, 3, 4
C:
2, 3, 4
D:
1, 3
Answer: B
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Which of the following constitutes an active component?
A:
Semiconductor device
B:
Resistors
C:
Capacitors
D:
Inductors
Answer: A
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On which of the following effect do thermocouples work?
A:
Thomson effect
B:
Seeback effect
C:
Peltier effect
D:
Joule effect
Answer: B
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The maximum forward current in case of signal diode is in the range of
A:
1 A to 10 A
B:
0.1 A to 1 A
C:
few milli amperes
D:
few nano amperes
Answer: C
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