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Recent questions and answers in Network Analysis

2 answers 34 views

A network which contains one or more than one source of e.m.f. is known as?

answered 4 days ago in Network Analysis
1 answer 16 views

What is branch?

answered Jul 4 in Network Analysis
1 answer 15 views

What is node?

answered Jul 4 in Network Analysis
1 answer 11 views
1 answer 9 views

In the circuit shown below, the current through the inductor is,

answered Jul 4 in Network Analysis
2 answers 155 views

What is a node in an electrical circuit?

answered Dec 12, 2018 in Network Analysis
1 answer 148 views
1 answer 66 views

What is mesh in circuit theory?

answered Oct 28, 2018 in Network Analysis
1 answer 53 views

A tree of a network graph consists of (A) (n-1) nodes (B) n branches (C) one or two nodes left in isolated position (D) no closed paths 

answered Jun 22, 2018 in Network Analysis
1 answer 10 views

To neglect a voltage source, the terminals across the source are _____

answered May 29, 2018 in Network Analysis
1 answer 13 views

To find current in a resistance connected in a network, Thevenin's theorem is used VTH = 20 V and RTH = 5 Ω. The current through the resistance: (1) is 4 A (2) is 4 A or less (3) is less than 4 A (4) May be 4 A or less or more than 4 A

answered May 29, 2018 in Network Analysis
0 answers 13 views

An R-L series AC circuit has R = 10 ohm and XL = 10 ohm. It is connected to an AC voltage source, the phase angle between voltage and current is (a) 30° (b) 45° (c) 60° (d) 36.8°

asked May 25, 2018 in Network Analysis
0 answers 14 views

In an RLC series AC circuit, if frequency is below the resonant frequency, then (a) XC = XL (b) XC < XL (c) XC > XL (d) None of these 

asked May 25, 2018 in Network Analysis
0 answers 6 views

Two two-port networks are connected in cascade. The combination is to be represented as a single two-port network. The parameters of the network are obtained by multiplying the individual a. z-parameter matrix b. h-parameter matrix c. y-parameter matrix d. ABCD-parameter matrix

asked May 24, 2018 in Network Analysis
1 answer 21 views

In a graph, the number of independent loops is 6 and the number of independent cut sets is 5, The total number of branches in the graph is A) 9 B) 12 C) 10 D) 11

answered May 24, 2018 in Network Analysis
1 answer 31 views

A voltage signal 10 Sinwt is applied to the circuit with ideal diodes, as shown in figure. The maximum and minimum values of the output waveform vout of the circuit are respectively

answered May 20, 2018 in Network Analysis
1 answer 15 views

In a series RLC circuit at resonance, the magnitude of the voltage developed across the capacitor  A) Is always zero B) Can never be greater than the input voltage C) Can be greater than the input voltage, however, it is 90° out of phase with the input voltage D) Can be greater than the input voltage, and is in phase with the input voltage

answered May 20, 2018 in Network Analysis
1 answer 14 views

Two incandescent light bulbs of 40 Wand 60 W rating are connected in series across the mains, then .  A) The bulbs together consume 100 W B) The bulbs together consume 50 W C) The 60 W bulb glows brighter D) The 40 W bulb glows brighter

answered May 20, 2018 in Network Analysis
1 answer 12 views

A unit step voltage is applied at t = 0 to a series RL circuit with zero initial conditions  A) It is possible for the current to be oscillatory B) The voltage across the resistor at t = 0+ is zero C) The energy stored in the inductor in the steady state is zero D) Theresistor current eventually falls to zero 

answered May 20, 2018 in Network Analysis
1 answer 26 views

A passive two port network is in a steady state. Compared to its input, the steady state output can never offer  A) Higher voltage B) Lower impedance C) Greater power D) Better regulation

answered May 20, 2018 in Network Analysis
1 answer 18 views

Consider the star network shown in figure. The resistance between terminals A and B with C open is 6 ohms, between terminals B and C withAopen is 11 ohms and between terminals C andAwith B open is 9 ohms. Then RA, RB, RC respectively is 

answered May 20, 2018 in Network Analysis
1 answer 49 views

The switch in the circuit has been closed for a long time. It is opened at t = 0. At t = 0+, the current through the 1 micro farad capacitor is A) 0A B) 1A C) 1.25A D) 5A

answered May 20, 2018 in Network Analysis
1 answer 5 views

As shown in the figure, 1 ohm resistance is connected across a source that has a load line v + i = 100. The current through the resistance is A) 25 A B) 50 A C) 100 A D) 200A

answered May 20, 2018 in Network Analysis
1 answer 70 views

The number of chords in the graph of the given circuit will be

answered May 20, 2018 in Network Analysis
1 answer 5 views

The time constant for the  given circuit is A) 1/9 S B) 1/4 S C) 4S D) 9S

answered May 20, 2018 in Network Analysis
1 answer 18 views

As a network contains only independent current sources and resistors then if the values of all resistors are doubled then the values of the node voltages are   (A) will become half (B) will remain unchanged (C) will become double (D) cannot be determined unless the circuit configuration and the values of the resistors are known.

answered May 17, 2018 in Network Analysis
1 answer 16 views

Consider the following statement for a 2-port network  1. Z11 =Z22  2. h12 = h21  3.Y12 = -Y21 4.BC - AD = -1   then the network is reciprocal if and only if   (A) 1 and 2 are correct (B) 2 and 3 are correct (C) 3 and 4 are correct (D) 4 alone is correct.

answered May 17, 2018 in Network Analysis
1 answer 16 views

When the graph of a network has six branches with three tree branches then the minimum number of equations required for the solution of the network is   (A) 2 (B) 3 (C) 4 (D) 5

answered May 17, 2018 in Network Analysis
1 answer 13 views

With n nodes and b branches a network will have   (A) (b+n) links (B) b - n +1 links (C) b -n-1 links (D) b + n + 1 links 

answered May 16, 2018 in Network Analysis
1 answer 12 views

A transmission line is terminated at its characteristic impedance. The reflection coefficient is  (a) 1 (b) –1 (c) 0 (d) ∞

answered May 16, 2018 in Network Analysis
1 answer 11 views

In a series RLC circuit operating below the resonant frequency the current  (a) I leads Vs (b) I lags Vs (c) I is in Phase with Vs (d) None of these

answered May 16, 2018 in Network Analysis
1 answer 10 views

Norton's equivalent of a circuit consists of a  1. Constant current generator with parallel impedance  2. Constant current generator in series with an infinite resistance  3. Constant current generator in parallel with high impedance  4. Constant current generator in series with low impedance

answered May 13, 2018 in Network Analysis
1 answer 13 views

In application of superposition theorem, one is required to solve as many circuits as there are  1. Nodes 2. Branches 3. Meshes 4. Sources 

answered May 13, 2018 in Network Analysis
1 answer 16 views

A passive 2-port network is in a steady state, compared to its input, the steady state output can never offer   (a) Higher voltage (b) Lower impedance (c) Greater power (d) Better regulation

answered May 13, 2018 in Network Analysis
1 answer 10 views

Which of the following theorems can be applied to any network linear or non-linear, active or passive, time variant or time invariant?   (a) Thevenin Theorem (b) Norton Theorem (c) Telligen Theorem (d) Superposition Theorem 

answered May 13, 2018 in Network Analysis
1 answer 19 views

 If the number of branches in a network is 'B', the number of nodes is 'N' and the number of dependent loops is 'L', then the number of independent node equations will be  (a) N+L–1 (b) B–1 (c) B–N (d) N–1 

answered May 13, 2018 in Network Analysis
1 answer 78 views

In a pure resistive circuit, the average power Pavg is ______ the peak power Pmax. (1) Double (2) One-half of (3) One-fourth (4) Equal to

answered May 1, 2018 in Network Analysis
1 answer 37 views

Millman's theorem yields equivalent  (1) Impedance or Resistance (3) Voltage source (2) Current source (4) Voltage or Current source

answered May 1, 2018 in Network Analysis
1 answer 61 views

In an ac series RLC circuit, the voltage across R and L is 20 V; voltage across L and C is 9 V and voltage across RLC is 15 V. What is the voltage across C?

answered May 1, 2018 in Network Analysis
1 answer 31 views

A DC voltage source is connected across a series RLC circuit. Under steady-state conditions, the applied DC voltage drops entirely across the

answered Apr 29, 2018 in Network Analysis
1 answer 17 views

The number of independent loops for a network with n nodes and b branches is

answered Apr 29, 2018 in Network Analysis
1 answer 28 views

A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled then the voltage across each resistor will

answered Apr 29, 2018 in Network Analysis
1 answer 20 views

The necessary and sufficient condition for a rational function of, T(s) to be driving point impedance of an RC network is that all poles and zeros should be

answered Apr 29, 2018 in Network Analysis
1 answer 19 views

Two port networks are connected in cascade. The parameters of the network are obtained by multiplying in individual

answered Apr 29, 2018 in Network Analysis
1 answer 21 views

In a series RLC high Q circuit, the current peaks at a frequency  (1) equal to the resonant frequency (2) greater than the resonant frequency (3) less than the resonant frequency (4) equal to half the resonant frequency

answered Apr 29, 2018 in Network Analysis
1 answer 30 views

Which of the following theorems enables a number of voltage (or current) source to be combined directly into a single voltage (or current) source. (1) compensation theorem (2) reciprocity theorem (3) superposition theorem (4) Millman's theorem

answered Apr 29, 2018 in Network Analysis
1 answer 16 views

The line current in a balanced delta system is 30 A. The load current is (A) 30√3 A (B) 30/√3 A (C) 10 A (D) 30/√2 A

answered Apr 28, 2018 in Network Analysis
1 answer 15 views

Which of the following are known as the short circuit parameters of a 2- port network? (A) Z- parameters. (B) H- parameters. (C) Y- parameters. (D) A,B,C,D, parameters.

answered Apr 28, 2018 in Network Analysis
1 answer 17 views

The internal resistances of an ideal current source, and an ideal voltage source are, respectively, (A) 0, ∞ (B) ∞, ∞ (C) ∞, 0 (D) 0,0

answered Apr 28, 2018 in Network Analysis
1 answer 30 views

Which of the following statements is incorrect ? (A) Superposition theorem is useful for Linear and Non-linear circuit analysis when several sources are present in the circuit. (B) Thevenin's equivalent network consists of one voltage source in series with an impedance. (C) Norton's equivalent network consists of ... . (D) When both the load and source impedances are purely resistive, maximum power transfer is achieved under the condition : Load Resistance = Source Resistance

answered Apr 28, 2018 in Network Analysis
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