Electronics and Communication Engineering - Networks Analysis and Synthesis

36.

Assertion (A): When a square periodic wave is applied to an RC circuit, the voltage across capacitor is observed to be a triangular periodic wave.

Reason (R): The RC circuit works as integrator and its time constant is much larger than time period of input wave.

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.

37.

Assertion (A): In a series resonant circuit current is maximum at resonance.

Reason (R): The inductive and capacitive reactances are equal.

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.

38.
Laplace transform of a unit doublet U-2 (t) is
1/s
s
0
1
Answer: Option
Explanation:
No answer description is available. Let's discuss.

39.
A series RL circuit is excited by a voltage v(t) = Ve-at such that a = R/L. Then the circuit current is
Answer: Option
Explanation:
No answer description is available. Let's discuss.

40.
In the transformer shown in the figure, the inductance measured across the terminal 1 and 2 was 4 H with open terminals 3 and 4. It was 3H when the terminals 3 and 4 were short circuited. The coefficient of coupling would be
1
0.707
0.5
indetermine due to insufficient data
Answer: Option
Explanation:
No answer description is available. Let's discuss.