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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 12
46.
The main purpose of using transformer coupling in a class A amplifier is to make it more
efficient
less costly
less bulky
distortion free
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
The effective channel length of a MOSFET in saturation decreases with increase in
gate voltage
drain voltage
source voltage
body voltage
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
Which of the following element does not have three valence electrons?
Boron
Aluminium
Gallium
Phosphorus
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Which of the following is used in the sterilization of water?
Hydrogen bromide
Oxygen
Ozone
Caustic potash
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
Electrons within a metal have energy levels from zero to Fermi level EF.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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