Electronics and Communication Engineering - Networks Analysis and Synthesis

1. 

Assertion (A): Laplace transform of f(t) = e-at sin ωt is

Reason (R): If Laplace transform of f(t) is F(s), then Laplace transform of e-at f(t) is F(s + a).

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: Option B

Explanation:

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2. 

A series RLC circuit is overdamped when

A.
B.
C.
D. R is infinite

Answer: Option B

Explanation:

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3. 

The function (s + 2) (s + 4)/[(s + 1)(s + 3)]

A. is a reactance function
B. is an RC function
C. may be a reactance function or an RC function
D. may be RC function or an RL function

Answer: Option D

Explanation:

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4. 

In figure, V1 = 40 V when R = 10 Ω, if R = 0, V2 will be

A. 40 V
B. 30 V
C. 20 V
D. 10 V

Answer: Option C

Explanation:

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5. 

The series element of a band stop filter is

A. capacitive
B. inductive
C. parallel combination of L and C
D. series combination of L and C

Answer: Option C

Explanation:

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