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What is a Supermesh?

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Description : Mesh Analysis with two supermesh

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Description : What is branch?

Answer : A path which connects two node is called branch.

Description : What is node?

Answer : A point in a circuit where two or more circuit elements are joined it is called node.

Description : What is active and passive network?

Answer : Active network is a network which contain one or more than one EMF source. An active network consists of an active element like battery or transistor. Passive network is a ... contain any source of energy. Passive network consists of passive element like resistance, inductance and capacitance.

Answer : What do you mean by parameter?! In the Z-transform we find zeros and poles of a system,so we can find the revergence area of a system

Description : What is the meaning of reference node?

Answer : No load  references

Description : What is a node in an electrical circuit?

Answer : a positively charged electrons

Description : What is a supernode?

Description : What is mesh in circuit theory?

Answer : A mesh is barrier made of conneticonstrands of metal fiber or other flexible or ductile materials

Description : What is the difference between a mesh and a loop?

Description : What is mesh and nodal analysis?

Description : What do you mean by network theory?

Description : If the 12 Ohm resistor draws a current of 1 A as shown in the figure, the value of resistance R is

Answer : If the 12 Ohm resistor draws a current of 1 A as shown in the figure, the value of resistance R is

Description : Find current through resistor using nodal analysis

Answer : Find current through resistor using nodal analysis

Description : Nodal analysis problem two current source

Answer : Nodal analysis problem two current source

Description : Nodal analysis problem

Answer : Nodal analysis problem

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

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Description : 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 

Answer : The dual of a tree is sometimes called a maze Itconsists of spaces connected by links in the same way that the tree consists of nodes connected by treebranches. Duals cannot be formed for every graph. ... Consequently, only planar graphs have duals.

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

Answer : To neglect a voltage source, the terminals across the source are short circuited

Description : 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

Answer : 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: is less than 4 A 

Description : 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°

Description : 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 

Description : 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

Description : 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

Answer : 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 11

Description : 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

Answer : 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 +4V and-7V

Description : 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 ... input voltage D) Can be greater than the input voltage, and is in phase with the input voltage

Answer : In a series RLC circuit at resonance, the magnitude of the voltage developed across the capacitor Can be greater than the input voltage, however, it is 90° out of phase with the input voltage 

Description : 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

Answer : Two incandescent light bulbs of 40 Wand 60 W rating are connected in series across the mains, then . The bulbs together consume 50 W 

Description : 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 ... The energy stored in the inductor in the steady state is zero D) Theresistor current eventually falls to zero 

Answer : A

Description : 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

Answer : A passive two port network is in a steady state. Compared to its input, the steady state output can never offer Greater power

Description : 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 

Answer : 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  2, 4,7

Description : 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

Answer : 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 1A

Description : 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

Answer : 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 50 A

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

Answer : The number of chords in the graph of the given circuit will be 3

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

Answer : The time constant for the given circuit is 4S

Description : 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 ... (D) cannot be determined unless the circuit configuration and the values of the resistors are known.

Answer : 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 will become double 

Description : 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.

Answer : 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.

Description : 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

Answer : 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 3 

Description : 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 

Answer : With n nodes and b branches a network will have  b - n +1 links

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

Answer : A transmission line is terminated at its characteristic impedance. The reflection coefficient is  0

Description : 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

Answer : In a series RLC circuit operating below the resonant frequency the current  I leads Vs 

Description : 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

Answer : Norton's equivalent of a circuit consists of a Constant current generator with parallel impedance 

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

Answer : In application of superposition theorem, one is required to solve as many circuits as there are Sources 

Description : 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

Answer : A passive 2-port network is in a steady state, compared to its input, the steady state output can never offer Greater power

Description : 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 

Answer : 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 

Description :  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 

Answer : N+l-

Description : 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

Answer : In a pure resistive circuit, the average power Pavg is One-half of the peak power Pmax.

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

Answer : Millman's theorem yields equivalent Voltage or Current source

Description : 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?

Answer : 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? 7 V

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