Exercise: Networks Analysis And Synthesis

Questions for: Networks Analysis And Synthesis

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
A:
1
B:
0.707
C:
0.5
D:
indetermine due to insufficient data
Answer: D
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A series RL circuit is excited by a voltage v(t) = Ve-at such that a = R/L. Then the circuit current is
A:
B:
C:
D:
Answer: B
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Laplace transform of a unit doublet U-2 (t) is
A:
1/s
B:
s
C:
0
D:
1
Answer: B
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Assertion (A): In a series resonant circuit current is maximum at resonance.

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

A:
Both A and R are true and R is correct explanation of A
B:
Both A and R are true and R is not the correct explanation of A
C:
A is true but R is false
D:
A is false but R is true
Answer: A
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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.

A:
Both A and R are true and R is correct explanation of A
B:
Both A and R are true and R is not the correct explanation of A
C:
A is true but R is false
D:
A is false but R is true
Answer: A
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