Exercise: Electronic Devices And Circuits

Questions for: Electronic Devices And Circuits

Which of the following element does not have three valence electrons?
A:
Boron
B:
Aluminium
C:
Gallium
D:
Phosphorus
Answer: D
No answer description is available. Let's discuss.
The effective channel length of a MOSFET in saturation decreases with increase in
A:
gate voltage
B:
drain voltage
C:
source voltage
D:
body voltage
Answer: A
No answer description is available. Let's discuss.
The main purpose of using transformer coupling in a class A amplifier is to make it more
A:
efficient
B:
less costly
C:
less bulky
D:
distortion free
Answer: D
No answer description is available. Let's discuss.
When a normal atom loses an electron
A:
the atom loses one-proton simultaneously
B:
rest of the electrons move faster
C:
the atom becomes a positive ion
D:
the atom becomes a negative ion
Answer: C
No answer description is available. Let's discuss.
In a CE bipolar transistor operating in active region, collector current is independent of
A:
VCE
B:
IB
C:
both VCE and IB
D:
none of the above
Answer: A
No answer description is available. Let's discuss.
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