How do you define ‘back emf’ and speed regulation of a dc motor. Can you explain analytically what happens to the torque and speed of a motor when the flux is varied?

Q: Indicate the parts of DC motor illustrated below.

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Q: Discuss how the Torque is developed in an Induction Motor

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Q: What is the Power Stages in an Induction Motor, Draw it?

A: Types of losses in Induction machine Stator core loss Stator cu loss Rotor cu loss Friction loss…

Q: Differentiate DC generators and DC motors with description.

A: DC series machine- Here, armature winding and field winding both are in series with each other. DC…

Q: Illustrate the physical components of a DC motor.

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Q: What is the value of the voltage regulation for a fully compensated compound dc generator?

A: For a fully compensated compound dc generator the full voltage which is denoted as VFL and no load…

Q: What are the methods of speed control of the DC motor? Explain them.

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Q: In your opinion, what happens to the rotor speed and current when mechanical load on an induction…

A: Given induction motor we have to calculate effect on rotor speed and current.

Q: Explain the construction , working principle and derivation of the torque induced in a DC Motor .…

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Q: Describe how DC, No-load and Locked Rotor Tests are performed on an induction Motor.

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Q: What is the difference between Self Excited and Separately Exited DC motor?

A: In Self excited DC motor, the current required to generate flux in field winding is supplied by the…

Q: 6. What should be done for an induction motor to be able to produce the highes possible torque?

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Q: What are the various losses in an Induction motor? On what factors do they depend?

A: the fallowing are the various losses that occur in induction motor:

Q: 4. What are the characteristics of DC Shunt Motor?

A: The various characteristics of dc shunt motor are as follows: i) Armature current-speed…

Q: What are the methods of speed control of the DC motor in Electrical Engineering? Explain them.

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Q: We want a four-pole synchronous motor that operates at a speed of 1000 rpm. Determine the frequency…

A: The operating speed of synchronous machine is defined as follows: Here P = number of magnetic…

Q: What is the mathematical model of a DC motor with describing variables: armature circuit voltage and…

A: A DC motor is an electromechanical device that converts electrical energy to mechanical energy. The…

Q: What is the effect of load on the efficiency of an induction motor? II. Explain the term air-gap…

A: As per the guidelines we supposed to answer one question at a time, so please ask other questions…

Q: What are the factors that affect the speed of a DC motor? *

A: speed of the DC motor can be determined using the following relation

Q: Explain theory of a separately excited DC motor.

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Q: Draw the winding diagram of a simplex 2-layer lap winding for a 4-pole generator with 20 coils.

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 3.Give the significance of Back emf in dc motor, What is the role of starter in motors? How the…

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Q: Why does curving the pole faces in a dc machine contribute to a smoother dc output voltage from it?

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Q: What are the two basic types of construction used for the rotors of induction motors? Which is the…

A: Lets discuss two basic types of construction which is used for rotors of induction motors is shown…

Q: Name the major parts of a DC motor

A: DC motor is a device which converts electrical energy into the mechanical energy. The major parts of…

Q: Examine the saddle torque of induction motors and the effect of different groove structures on the…

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Q: In examining a single-phase ac motor, what features could we look for to identify it as a universal…

A: First of all, to examine the universal motor, examine the motor's construction means to examine the…

Q: Explain in detail the Starting of Induction Motors

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Q: Explain the significance of back emf in DC motor.

A: The nature works on the principle of opposing each other quantities.... When we are on the driving…

Q: The relation between armature torque and armature current of a DC motor is Parabolic Linear Inverse…

A: From the DC motor characteristics

Q: Sketch the torque versus speed characteristic for a shunt-connected dc motor. What happens to the…

A: Given:  The torque versus speed characteristic for a shunt-connected dc motor. What happens to the…

Q: 2. What are the different types of dc motor? 3. What is the basic principle of working of DC motor?

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Q: Q5// A: The below curve represents Ta/la characteristic of a dc series motor. Briefly discuss this…

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Q: (a) Describe a single wire DC motor with the help of a diagram. (b) Illustrate the physical…

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Q: Find Power in induction motor and Power losses in Induction machines?

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Q: How high is the rated torque of separately excited shunt wound DC Motor?

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Q: Write an Introduction about DC Motors.

A: we need to explain DC motor.

Q: Describe the Characteristics, characteristics, efficiency calculations, their applications Of DC…

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Q: How would you reverse the polarity of a self-excited DC generator?

A: In this question we discuss how would you reverse the polarity of a self-excited DC generator.

Q: I. What is the effect of load on the efficiency of an induction motor?

A: Effect of load on the efficiency of induction motor: efficiency of motor is defined as the ratio of…

Q: c) Discuss how armature resistance could be used to control the speed of a DC motor.

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Q: ationship between slip s) and load (Pa) in an induction motor? Please explain.

A: The induction motor is an AC motor. It rotates slightly less than synchronous speed. It is…

Q: DC motor. How the flu

A: A DC motor is a device that convert the electrical power into mechanical power. It works on DC…

Q: induction motor, If the rotor speed becomes equal to

A: In this we will write about induction motor if rotor speed becomes synch speed...

DC Series Motors

A DC motor is a type of electric motor which converts electric energy into mechanical energy. The forces that are produced by the magnetic field are what those common types of motors rely upon. Either electro-mechanical or electronic, all types of DC motors have some internal mechanism to change the current direction in part of the DC motors. As the DC motors could be powered from existing DC lighting power distribution systems, these motors were the first form of motors widely used. By changing the strength of the current in its field winding or by using a variable supply voltage, the speed of the DC motors can be controlled over a wide range.