Network Theory And Analysis MCQ Questions & Answers

51

The current in resistor R shown in the figure will be
Network Theory and Analysis mcq question image

A) 0.2 A B) 0.4 A C) 0.6 A D) 0.8 A

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Answer & Solution

Answer: Option A

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52

If two identical first order low-pass filters are cascaded non interactively, then the unit step response of the composite filter will be

A) Critically damped B) Under damped C) Over damped D) Oscillatory

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Answer & Solution

Answer: Option A

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53

Find the equivalent resistance R for the network shown in the figure.
Network Theory and Analysis mcq question image

A) 200 ohms B) 101 ohms C) 220 ohms D) 100 ohms

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Answer & Solution

Answer: Option D

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54

The driving point impedance of the following network
is given by $$Z\left( s \right) = \frac{{0.2s}}{{{s^2} + 0.1s + 2}}.$$ The component values are
Network Theory and Analysis mcq question image

A) L = 5 H, R = 0.5 Ω, C = 0.1 F B) L = 0.1 H, R = 0.5 Ω, C = 5 F C) L = 5 H, R = 2 Ω, C = 0.1 F D) L = 0.1 H, R = 2 Ω, C = 5 F

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Answer & Solution

Answer: Option D

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55

Two identical two-port networks having transmission matrix \[\left[ {\begin{array}{*{20}{c}} {\text{A}}&{\text{B}} \\ {\text{C}}&{\text{D}} \end{array}} \right]\] are cascaded. What will be the resultant transmission matrix of the cascade?

A) \[\left[ {\begin{array}{*{20}{c}} {\text{A}}&{\text{B}} \\ {\text{C}}&{\text{D}} \end{array}} \right]\] B) \[\left[ {\begin{array}{*{20}{c}} {{\text{2A}}}&{{\text{2B}}} \\ {{\text{2C}}}&{{\text{2D}}} \end{array}} \right]\] C) \[\left[ {\begin{array}{*{20}{c}} {{{\text{A}}^2} + {\text{BC}}}&{{\text{AB}} + {\text{BD}}} \\ {{\text{AC}} + {\text{CD}}}&{{\text{BC}} + {{\text{D}}^2}} \end{array}} \right]\] D) \[\left[ {\begin{array}{*{20}{c}} {{{\text{A}}^2}}&{{{\text{B}}^2}} \\ {{{\text{C}}^2}}&{{{\text{D}}^2}} \end{array}} \right]\]

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Answer & Solution

Answer: Option C

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56

Reciprocity theorem is applicable to

A) Linear networks only B) Bilateral networks only C) Linear/bilateral networks D) Neither of the two

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Answer & Solution

Answer: Option C

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57

A bulb rated at 50 W, 100 V is used for 40 minutes. The charge associated with this operation is

A) 3600 C B) 1200 C C) 7200 C D) 600 C

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Answer & Solution

Answer: Option B

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58

A particular current is made up of two components a 10 A dc and a sinusoidal current of peak value of 14.14 A. The average value of the resultant current is

A) zero B) 24.14 C) 10 A D) 14.14 A

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Answer & Solution

Answer: Option C

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59

The voltage applied to an R-L circuit at t = 0 when switch is closed at 100cos(100t + 30°). The circuit resistance is 80 Ω and inductance is 0.6 H (in which initial current is zero). What is the maximum amplitude of current flowing through the circuit?

A) 1 A B) 2 A C) 5 A D) 10 A

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Answer & Solution

Answer: Option A

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60

The maximum number of trees of the graph in figure is
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A) 16 B) 25 C) 100 D) 125

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Answer & Solution

Answer: Option D

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Network Theory And Analysis MCQ Questions & Answers | ECE