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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 6
41.
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?
1 only
2 only
Both 1 and 2
neither 1 nor 2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
In a photo emissive device and emission efficiency is increased by
coating the cathode ray by an active materials
coating the cathode by an insulating material
heating the cathode
cooling the anode
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Materials in order of decreasing electrical conductivity are
aluminium, silver, gold, copper
gold, silver, copper, aluminium
copper, silver, gold, aluminium
silver, copper, gold, aluminium
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Transconductance characteristics of JFET depict the relation between
ID and VGS for different value of VDS
ID and VDS for different value of VGS
VGS and VDS for different values of ID
VDS and ID for different values of VGS
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
The resistivity of intrinsic semiconductor material is about
105 ohm-m
103 ohm-m
100 ohm-m
1 ohm-m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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