Exercise: Electronic Devices And Circuits

Questions for: Electronic Devices And Circuits

In a photo emissive device and emission efficiency is increased by
A:
coating the cathode ray by an active materials
B:
coating the cathode by an insulating material
C:
heating the cathode
D:
cooling the anode
Answer: A
No answer description is available. Let's discuss.
Consider the following statements about diamagnetic material and diamagnetism.
  1. The materials have negative magnetic susceptibility.
  2. At very low temperature diamagnetic materials.
Which of the statements given above is/are correct?
A:
1 only
B:
2 only
C:
Both 1 and 2
D:
neither 1 nor 2
Answer: A
No answer description is available. Let's discuss.
In fabricating silicon BJT in ICs by the epitaxial process, the number of diffusions used is usually
A:
2
B:
3
C:
4
D:
6
Answer: D
No answer description is available. Let's discuss.
In common base connection, the output characteristics of a bipolar junction transistor is drawn between
A:
IC and VCB
B:
IC and VCE
C:
IE and VCB
D:
IE and VCE
Answer: A
No answer description is available. Let's discuss.
Secondary emission occurs in
A:
diode
B:
triode
C:
tetrode
D:
pentode
Answer: C
No answer description is available. Let's discuss.
Ad Slot (Above Pagination)
Quiz