Electronics and Communication Engineering - Networks Analysis and Synthesis

26.
Which one is correct option?
  1. A pure capacitor never dissipates energy, but only stores.
  2. Capacitor can store finite amount of energy even cunent is zero.
  3. The current through a capacitor is zero if voltage across it d.c.
  4. Voltage across a capacitor cannot change instantaneously since it would require an infinite current.
  5. qc(0-) = qc(0+)
5, 4, 3, 2
3, 4, 1, 2
2, 4, 3, 1
1, 2, 3, 4, 5
Answer: Option
Explanation:
No answer description is available. Let's discuss.

27.
If a driving point function N(s) = p(s)/q(s), then
the terms of lowest degree in p(s) and q(s) may differ in degree by zero only
the terms of lowest degree in p(s) and q(s) may differ by one at the most
the terms of lowest degree in p(s) and q(s) may differ in degree by two at the most
the terms of lowest degree in p(s) and q(s) may differ in degree by three at the most
Answer: Option
Explanation:
No answer description is available. Let's discuss.

28.
For a half wave rectified voltage, the form factor and peak factor respectively are
1.11 and 2
1.57 and 2
1.11 and 1.11
1.57 and 2
Answer: Option
Explanation:
No answer description is available. Let's discuss.

29.
A series LCR circuit consisting of R = 20 Ω, | XL | = 20 Ω and | XC | = 20 Ω, connected across an A.C. supply of 200 V rms. The rms voltage across the capacitor is
100 ∠ 45
400 ∠ -90°
400 ∠ +90°
100 ∠ -45
Answer: Option
Explanation:
No answer description is available. Let's discuss.

30.

Assertion (A): In KVL equations involving mutually coupled circuits the sign of M terms can be positive or negative.

Reason (R): Dot convention helps in determining sign of M terms in KVL equations.

Both A and R are true and R is correct explanation of A
Both A and R are true and R is not the correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:
No answer description is available. Let's discuss.