As speed of D.C motor is increased the back EMF ---and current drawn --

Q: Describe the similarities in the construction of a DC motor and a DC generator.

A: From a mechanical standpoint, a DC motor and a DC generator are quite similar, but from a technical…

Q: Q2. Suggest a suitable method to raise the speed of a de shunt motor 1 Add file

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Q: Increasing the frequency of the supply :will .Decrease the rotor speed at a certain load torqueO…

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Q: The maximum size of a shaded-pole motor is about A. 1/10 th HP. B. 1/25 th HP.

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Q: The counter e.m.f. of a d.c. motor often exceeds the supply voltage aids the applied voltage helps…

A: a..>> The back emf of a dc motor makes the motor to draw as much armature current as it is…

Q: The following circuit is an L298 DC motor driver for OL ENB * IN2 INT SV GND 12V OUTI OUTZ E Six DC…

A: option b is the correct answer. L298 is used for two dc motor at a time.   The L298N is a…

Q: The current drawn by a 120 V d.c. motor with back e.m.f. of 110 V and armature resistance of 0.4 ohm…

A: Given: V=120 VE=110 VRa=0.4 Ω

Q: explain about mechanical test in routin test of C B

A: Testing of a circuit breaker are of two types:  Type Tests  Routine Test. The circuit breakers carry…

Q: the armature mmf can be -2 reduced by reluctance of the magnetic the circuit in the region of the…

A: The explanation is as follows.

Q: B) The following diagram Shows and H-bridge, a circuit used to control the direction of DC Motors,…

A: Find the diagram to control the direction of a DC motor,

Q: The DC shunt generator with the terminal voltage 350 V, armature drop 7 V and the each brush drop 2…

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Q: series motor runs at 800rpm when the voltage is 400v and the current is 25 ampere the armature…

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Q: 1. The operation of Commutator in DC Motor is O a) to convert dc to ac O b) to convert ac to dc O c)…

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Q: The DC shunt generator with the terminal voltage 300 V, armature drop 7 V and the each brush drop 4…

A: In this we will find emf..

Q: The actual rotor resistance referred to the stator in an induction motor is? O a. r2 O b. r2/(1-s) O…

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Q: A 4-pole, wave of 300 turns eac

A: Generally there are two types of winding configuration is used for DC machine: Lap winding and wave…

Q: How voltage is built up in dc shunt generator

A: as the name suggests the field winding of the shunt generator is connected in parallel with the…

Q: Q5// A 4 pole lap - winding dc shunt generator has an armature winding consisting of 220 turns each…

A: Note: As per the company's guidelines, only one question is allowed to answer. Kindly post the other…

Q: The poles, q-axes, and brushes are-3 of the armature winding a) Part O b) not part O c) included

A: Armature winding of an electrical machine

Q: In d.c. generators armature reaction is produced by --

A: (6) When the armature of a DC machine carries a current i.e. load current in armature winding…

Q: ?In DC machine torque depends on which of the following None of the above O armature current (la) O…

A: In Dc machine torque depends on Flux (∅) and Armature Current (Ia). for DC machine Torque equation…

Q: If field current is not supplied internally by the armature, then the machine is said to be…

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Q: Do you What is Induction motor?

A: as asked to give basic induction motor overview....let me give some basic and some technical…

Q: The DC shunt generator with the terminal voltage 300 V, armature drop 8 V and the each brush drop 2…

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Q: A 3-0, 6 pole, 50 Hz IM has a rotor speed of 987 rpm. Find rotor frequency? E) 60 Hz. F) 0.65 Hz. G)…

A: Given: A 3-phase induction motor has, Number of poles, P=6 Frequency, f=50 Hz Rotor speed, NS=987…

Q: The DC shunt generator with the terminal voltage 375 V, armature drop 7 V and the each brush drop 2…

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Q: Is this armature winding a progressive or a retro-progressive winding? W N Select one: 2 B 4' O a.…

A: In this armature winding, both progressive and retro-progressive winding is present, The two ends of…

Q: Lap windings are used in d.c machine designed for what type of application? * O Low voltage low…

A: Lap winding is designed to use in dc machine but its application is that provides low voltage high…

Q: The DC shunt generator with the terminal voltage 375 V, armature drop 8 V and the each brush drop 2…

A: Generator: It is an electromechanical device, that converts the mechanical energy to electrical…

Q: In DC Shunt Motor the back emf E. = Select one: O a. V-IR O b. V/I.R₂ O C. V+ I₂R₂ O d. VI /R₂

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Q: The DC shunt generator with the terminal voltage 375 V, armature drop 6 V and the each brush drop 4…

A: In this question , we will find generated emf in dc machine.

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.