Electronics and Communication Engineering - Analog Electronics

26.
Logarithmic amplifiers are used in
adders
dividers
multipliers
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

27.
Figure represents a
JFET shunt switching circuit
JFET series switching circuit
JFET analog switch
multiplexing
Answer: Option
Explanation:
No answer description is available. Let's discuss.

28.
In figure VBE = 0.7 V. If base current required to saturate the transistor is 0.1 mA, Vi =
5 V
5.7 V
10 V
10.7 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.

29.
As per miller theorem the circuit of figure (1) can be replaced by that in figure (2) If V1/V2 = K, then Y1 and Y2 are equal to
Y(1 - K) each
each
Y1 = Y(1 - K) and Y2 =
Y1 = and Y2 = (1 - K)
Answer: Option
Explanation:
No answer description is available. Let's discuss.

30.
In a biased JFET (Figure) the shape of the channel is as shown because
it is the property of material used
the drain end is more reverse biased than source end
drain end is more forward biased than source end
impurity profile changes with distance
Answer: Option
Explanation:
No answer description is available. Let's discuss.