Can you help by answering this question?

What is back EMF of synchronous motor?

10 views
in Network Analysis by
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

1 Answer

0 votes
by

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

Related questions

1 answer 46 views

Application of Norton's theorem to a circuit yields?

asked Mar 25, 2018 in Network Analysis by Shimroz123
0 answers 27 views

A star circuit has element of resistance R/2. The equivalent delta elements will be?

asked Mar 25, 2018 in Network Analysis by Shimroz123
1 answer 10 views

A network consists of several inductances connected in parallel. The equivalent inductance of the network is given by (A) the sum of the individual inductances. (B) the reciprocal of the sum of the individual inductances. (C) the sum of the reciprocals of individual inductances. (D) the reciprocal of the sum of reciprocals of individual inductances.

asked Apr 25, 2018 in Electrical Engineering by Shimroz123
1 answer 76 views

Norton’s theorem states that a complex network connected to a load can be replaced with an equivalent impedance (A) in series with a current source (B) in parallel with a voltage source (C) in series with a voltage source (D) in parallel with a current source

asked Apr 26, 2018 in Electronics Engineering by Shimroz123
1 answer 52 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 

asked Jun 4, 2018 in Network Analysis by Shimroz123
0 answers 39 views

Application of Norton's theorem to a circuit yields : (A) Equivalent current source only (B) Equivalent voltage source only (C) Equivalent voltage source and impedance in series (D) Equivalent current source and impedance in parallel

asked Apr 14, 2018 in Electrical Engineering by Shimroz123
1 answer 14 views

The 'h' parameter equivalent circuit of a junction transistor is valid for   (A) High frequency, large signal operation (B) High frequency, small signal operation (C) Low frequency, large signal operation.

asked May 17, 2018 in Power Electronics by Shimroz123
1 answer 13 views

The two basic components of a Thevenin equivalent ac circuit are the equivalent voltage source and the equivalent: A. Series impedance B. Series resistance C. Parallel impedance D. Parallel resistance

asked Apr 12, 2018 in Electrical Engineering by Shimroz123
0 answers 12 views

In the equivalent circuit of a 3-phase induction motor, the mechanical load on the motor can be represented by a resistance of value (1) R2 (2) R2/S (3) R2(1-S)/S (4) (R2/S)+1 

asked Apr 11, 2018 in Electrical Engineering by Shimroz123
0 answers 12 views

If each branch of a Delta circuit has impedance √3 Z, then each branch of the equivalent Y circuit has impedance:  (A) Z/√3 (B) 3Z (C) 3√3Z (D) Z/3

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
0 answers 25 views

Can we apply Norton's theorem in an AC circuit?

asked Mar 10, 2018 in Electrical Engineering by Quiz
1 answer 37 views

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

asked May 1, 2018 in Network Analysis by Shimroz123
1 answer 18 views

While calculating Rth in Thevenin's theorem and Norton equivalent?

asked Mar 25, 2018 in Network Analysis by Shimroz123
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

asked May 20, 2018 in Network Analysis by Shimroz123
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.

asked Apr 28, 2018 in Network Analysis by Shimroz123
1 answer 11 views

Three capacitors 15µf, 18µf and 12µf are connected in a circuit. Find equivalent capacitance when they are connected in – 1) Series 2) Parallel

asked Sep 2, 2018 by Shimroz123
0 answers 34 views

 What does the shunt resistance component in the equivalent circuit of an Induction motor represent ? (A) Windage and frictional loss only (B) Core losses only (C) Core, windage and frictional loss (D) Copper losses in rotor

asked Apr 14, 2018 in Electrical Engineering by Shimroz123
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

asked May 20, 2018 in Network Analysis by Shimroz123
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 

asked May 20, 2018 in Network Analysis by Shimroz123
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

asked May 20, 2018 in Network Analysis by Shimroz123
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

asked May 16, 2018 in Network Analysis by Shimroz123
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

asked May 1, 2018 in Network Analysis by Shimroz123
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

asked Apr 29, 2018 in Network Analysis by Shimroz123
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

asked Apr 29, 2018 in Network Analysis by Shimroz123
1 answer 16 views

In a series parallel circuit, any two resistances in the same current path must be in?

asked Mar 25, 2018 in Network Analysis by Shimroz123
2 answers 154 views

What is a node in an electrical circuit?

asked Mar 10, 2018 in Network Analysis by Quiz
1 answer 69 views

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

asked May 20, 2018 in Network Analysis by Shimroz123
0 answers 103 views

A balanced three phase Delta connected load consists of three resistances each of four ohm's connected to a 400 V 3 phase 50 Hz supply. Find 1) phase voltage, 2) phase current, 3) line current, 4) power consumed.

asked Aug 12, 2018 in Basic electrical and electronics engineering by Quiz
1 answer 15 views

In practice, a current source inverter consists of an AC/ DC converter with a large inductance ‘L’ in the output. This inductance maintains a ……… …………through the switching devices over short interval of time. A) constant current B) constant voltage C) constant power D) none of the (A), (B), (C)

asked Jun 17, 2018 in Electrical Engineering by Shimroz123
1 answer 50 views

A homo-polar HVDC link consists of (A) single-conductor with positive polarity (B) two conductors with one positive and another negative polarity (C ) two conductors having the same polarity with a ground return (D) single conductor with negative polarity and ground as positive polarity 

asked Jun 4, 2018 in Flexible AC Transmission System by Shimroz123
1 answer 21 views

A network that consists of at least a voltage source or current source is called A) Active network B) Ideal network C) Sourced network D) Outsourced network

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
0 answers 10 views

A Decision Support System (DSS) consists of  (1) More DML, less DQL (2) More DQL, less DML (3) Half DML, half DQL (4) Only DML

asked Apr 10, 2018 in Computer Engineering by Shimroz123
0 answers 18 views

A practical voltage source consists of an ideal voltage source in  (A) Series with internal resistance (B) Parallel with internal resistance (C) Series with impedance (D) Series with capacitance

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
1 answer 10 views

A three phase 50 Hz line consists of three conductors each of diameter 21 mm, The spacing between the conductors all follows: A - B = 3m, B - C = 5m, C - A = 3.6m If the line operates at 132 k V, the reactive voltampere generatd by the line per km is?

asked Mar 27, 2018 in Power system by Shimroz123
1 answer 115 views

A 100 km transmission line is designed for a nominal voltage of 132 kV and consists of one conductor per phase. The line reactance is 0.726 ohm/km. The static transmission capacity of the line, in MW, would be   (a) 240 (b) 132 (c) 416 (d) 720

asked Mar 27, 2018 in Power system by Shimroz123
0 answers 21 views

Norton's Theorem is a way to reduce a network to  (A) An equivalent circuit composed of a single current source, series resistance, and series load (B) An equivalent circuit composed of a single voltage source, parallel resistance, and parallel load (C) An equivalent circuit composed of a single voltage source, series resistance, and series load (D) An equivalent circuit composed of a single current source, parallel resistance, and parallel load 

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
1 answer 9 views

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

asked Jul 4 in Network Analysis by Shimroz123
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 by Shimroz123
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 by Shimroz123
1 answer 5 views

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

asked May 20, 2018 in Network Analysis by Shimroz123
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?

asked May 1, 2018 in Network Analysis by Shimroz123
1 answer 29 views

An electrical circuit with 10 branches and 7 junctions will have

asked Apr 26, 2018 in Network Analysis by Shimroz123
1 answer 15 views

The circuit has resistors, capacitors and semi-conductor diodes. The circuit will be known as

asked Mar 25, 2018 in Network Analysis by Shimroz123
1 answer 15 views

The circuit whose properties are same in either direction is known as?

asked Mar 25, 2018 in Network Analysis by Shimroz123
1 answer 66 views

What is mesh in circuit theory?

asked Mar 10, 2018 in Network Analysis by Quiz
1 answer 23 views

A current of 4 amperes flowing for 45 minutes deposits 1.062 gm of metal at cathode. Calculate the equivalent weight of the metal. (Given 1 Faraday = 96500 C)

asked Sep 3, 2018 by Shimroz123

Welcome to electronics2electrical.com here you can ask questions related to electrical, electronics, mechanical, telecommunication, instrumentation, computer, mathematics, physics etc.
Be respectful to all the members. Do not copy and paste the answers from other websites which have copyright content. While asking question give full details about it.

Categories

Most popular tags

power motor dc circuit transformer voltage current used system phase resistance factor synchronous load ac energy induction electric generator series frequency between speed capacitor use electrical meter line difference control type mosfet transmission magnetic plant high single instrument bjt unit source advantages function diode and machine winding field define torque parallel amplifier supply shunt thyristor motors electricity arduino maximum time relay armature problem value on transformers types coil diagram state flow ratio material three formula starting direction theorem method emf operating efficiency digital wave microprocessor test instruments inductance loss measure operation connected signal low applications effect single-phase network temperature working constant losses different law wattmeter measuring compare controlled breaker drive device logic rc full switch flux wire resistivity disadvantages free of materials machines angle force converter conductor transistor gain open protection scr core measurement number bridge principle generators reactance circuits negative the friction iron loop short pole battery conservation steam resistors hysteresis computer using analog lines secondary station gate a rectifier inverter linear induced relays nuclear capacitance basic characteristics design direct work rotor electronics ammeter forces diesel damping rlc connection factors capacitors minimum insulation moving regulation running self systems air fault range main stability quality starter igbt eddy alternator ideal rl average 3-phase plants arc thermal error fuzzy biasing dielectric pressure balanced superposition errors copper rotation feedback impedance measured electronic electrons charge inductive transfer explain start off back curve over solar is three-phase tariff locomotive peak bias zener engineering commutator surge conductors rating universal potentiometer density permanent mechanical transducer capacity memory adc excitation two fuse pure harmonics application semiconductor inductor internal pmmc reaction welding resonance traction permeability breakers rms designed electromagnetic si generation brushes switching capacitive shaded rate 1 distribution resistor methods delta star oscillator reluctance simplification algebra 8085 boolean weston dynamometer insulating strength installation definition fuel heating earth units

8,450 questions

7,047 answers

132 comments

3,084 users

...