Exercise: Electronic Devices And Circuits

Questions for: Electronic Devices And Circuits

Hall effect can be used to find the type of semiconductor.
A:
True
B:
False
C:
D:
Answer: A
No answer description is available. Let's discuss.
In an insulated gate FET, the polarity of inversion layer is the same as that of
A:
minority carriers in source
B:
majority carriers in source
C:
charge on gate electrode
D:
minority carriers in drain
Answer: B
No answer description is available. Let's discuss.
As the temperature of an intrinsic semiconductor material is increased
A:
protons get excited
B:
neutrons acquire charge
C:
energy of the atom is increased
D:
additional holes are created in the conduction band
Answer: C
No answer description is available. Let's discuss.
When a ferromagnetic substance is magnetised, small changes in dimensions occur. Such a phenomenon is known as
A:
magnetic hystresis
B:
magnetic expansion
C:
magneto striction
D:
magneto calorisation
Answer: C
No answer description is available. Let's discuss.
When the light falling on a photodiode increases, the reverse minority current
A:
increases
B:
increases or decreases
C:
decreases
D:
remains the same
Answer: A
No answer description is available. Let's discuss.
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