Electronics and Communication Engineering - Networks Analysis and Synthesis

46.
For a symmetrical network
z11 = z22
z12 = z21
z11 z22 and z12 = z21
z11 z12 - z122 = 0
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
Consider the following statements
  1. Tellegen's theorem is applicable to any lumped network.
  2. Reciprocity theorem is applicable to linear bilateral network.
  3. Thevenin theorem is applicable to two terminal linear active network.
  4. Norton's theorem is applicable to linear active network.
Which of the above statements are correct?
1, 2 and 3
1, 2, 3 and 4
1, 2 and 4
3 and 4
Answer: Option
Explanation:
No answer description is available. Let's discuss.

48.
A network is causal if impulse response is zero for t < 0.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

49.
When an alternating current passes through an ohmic resistance the electrical power converted into heat is
apparent power
true power
reactive power
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

50.
Volume control found on the front panel of television receivers
a ganged resistor
a variable resistor of logarithmic type
a variable resistor of linear type
a trimmer potentiometer
Answer: Option
Explanation:
No answer description is available. Let's discuss.