Electronic Devices Circuits Point Contact Diode Online Exam Quiz
Electronic Devices Circuits Point Contact Diode GK Quiz. Question and Answers related to Electronic Devices Circuits Point Contact Diode. MCQ (Multiple Choice Questions with answers about Electronic Devices Circuits Point Contact Diode
The barrier layer capacitance of a point contact diode is_________
Options
A : 0.1pF to 1pF
B : 5pF to 50pF
C : 0.2pF to 2pF
D : 0.008µF to 20µF
The operating frequencies of the point contact diode is_________
Options
A : 30KHz or above
B : 10GHz or above
C : 30GHz or above
D : 10KHz or above
The semiconductor junctions those are present in a contact diode_________
Options
A : beryllium-copper and bronze-phosphor
B : beryllium-phosphor and bronze-copper
C : mercury-iodine
D : tin-tungsten
The application of a contact diode is_________
Options
A : Clampers and clippers
B : Voltage multipliers
C : Rectifiers
D : AM detectors
The cat whisker wire present in the contact diode is used for_________
Options
A : for heat dissipation
B : for charge transfer between sections
C : maintaining the pressure between sections
D : preventing current flow
In the forward bias condition, the resistance of point contact diode is_________
Options
A : less than that of a general PN diode
B : greater than that of a general PN diode
C : equal to that of a general PN diode
D : varies exponentially than that of a general PN diode
What is the capacitive reactance across the point contact diode when compared to normal PN junction diode
Options
A : lower
B : higher
C : equal
D : cannot be determined
The materials that are used in the construction of point contact diode are _________
Options
A : Silicon
B : SnTe or Bi2Te3
C : GaS or CdS
D : HgI
During the manufacture of point contact diode, why is a relatively large current passed from cat whisker to silicon crystal?
Options
A : to control the amount of current flow
B : to form small region of p type material
C : to allow mechanical support for the sections
D : to form anode and cathode regions
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