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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 9
11.
A long specimen of P type semiconductor material
is + vely charged
is electrically neutral
has an electric field directed along its length
acts as a dipole
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
For BJT, under saturation condition
IC = βIB
IC > bIB
IC is independent of all other parameters
IC < βIB
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
An inductor filter has a ripple that __________ with load resistance and consequently is used only with relatively __________ load currents.
decreases, low
decreases, high
increases, low
increases, high
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
In a JFET
the source gate junction is forward biased and gate drain junction is reverse biased
both the junctions are forward biased
both the junctions are reverse biased
the source gate junction is reverse biased and gate drain junction is forward biased
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Introducing a resistor in the emitter of a common amplifier stabilizes the d.c. operating point against variations in
only the temperature
only β of the transistor
both temperature and β
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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