A small series-wound dc motor is operated from a 12-V car battery. Under a normal load, the motor draws 4.0 A, and when the armature is clamped so that it cannot turn, the motor draws 24 A. What is the back emf when the motor is operating normally?

Q: discuss how the dc motor is used in washing machine

A: The answer as given below:

Q: A. A 440-V series motor runs at 600 r.p.m. taking a current of 50 A. Calculate the spee percentage…

A: In this question we will find speed and percentage change in torque for series motor... Note :- as…

Q: C.ttlAsiacell موعد التسليم ۱6 حزیران ۱۲:۲۰ م A universal series motor has a resistance of 30 and an…

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Q: A 220 V series motor takes 15 A and runs at 700 rpm. The armature resistance including the…

A: The solution is given below

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Q: 3. A shunt motor running at 600 rpm takes 80 A at 250 V. Armature resistance is 0.1 ohm. Shunt field…

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Q: Q6 A 460-V series motor runs at 500 r.p.m. Taking a current of 40 A. Calculate the speed and…

A: In this question,   We need to calculate the speed N and change of the torque?

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A: We are authorized to answer one question at a time, since you have not mentioned which question you…

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A: armature current I = terminal voltage - back emfarmature resistance at starting back emf is zero as…

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A: torque in shunt machine is directly proportional to product of flux and armature current. we will…

Q: A 220V. dc series motor is running at a speed of 800 rpm and draws 100 A. Calculate at what speed…

A: Supply voltage, V = 220 V Initial speed of the motor, N1 = 800 r.p.m Armature current at speed N1,…

Q: A 220V. dc series motor is running at a speed of 800 rpm and draws 100 A. Calculate at what speed…

A: It is given that: Vt=220 VN==800 rpmIa=100 ARa+Rse=0.1Ω

Q: A universal series motor has a resistance of 30 and an inductance of 0.5 H. when connected to a 250…

A: When 250VDC connectedEbdc = V-IaRaEbdc = 250-0.8×30Ebdc = 226VNdc = 2000 rpmWhen 250 VAC 50 Hz…

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A: => Dc motor are commonly used in the household appliances Like -: vacuum cleaner, food mixer…

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A: Given:  A series DC motor whose terminal voltage    VT = 210 volts  Armature resistance, Ra = 2 ohm…

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A: Given Current I=10 A Voltage V=400 V Resistance R=2 Ω Iron + Friction + Windage losses Pi=300 W The…

Q: b) A Four pole, wave wound DC series motor operating at 120V has 100 conductors on its armature. It…

A:

Q: a 220-v dc motor is running at a full load speed of 800 rpm and draws 100 A. calculate at what speed…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

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A: Types of DC Motor Seperetely excited motor Series Motor Shunt Motor Compound Motor Differential…

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A: In this question we will write starting current of dc motor...

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A: Given, A DC series motor has,  Voltage, V = 400 V Shaft torque, T = 200 Nm Efficiency, η=80 %=0.8…

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A: Given, a DC series motor having Resistance across terminal, Rt = 1 ohm Speed, N1 = 1000 rpm Terminal…

Q: A 20kW, 200V dc shunt motor has an electrical efficiency of 86% and an armature resistance of 0.25Ω.…

A: Given:DC shunt motorInput Power, Pin=20 kWInput Voltage, Vin=200VArmaturte resistance,…

Q: If the losses of the armature wingdings of dc motor which is running at 1200 RPM is neglected and…

A:

Q: A 220 V series motor takes 15 A and runs at 700 rpm. The armature resistance including the…

A: We need to find out Speed of motor .

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Q: O1. Which of the following is the correct formula to determine the efficiency of a DC motor? a) %…

A: Efficiency is the parameter to determine the performance of the machine.

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A: Rated speed is given, Nfl=1800 rpm Voltage regulation is given,  VR=5.8%=0.058

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A: Armature induced emf = K×(flux ×Speed ) Where K is constant. Neglecting rotational loss developed…

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A: The voltage wave form for DC motor given Motor Armature Resistance = RA = 6 Ω Motor Armature Current…

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A: The solution can be achieved as follows.

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A: Given Data: Terminal voltage V = 200 V no load current Io = 5 A Rf = 150 ohm Ra = 0.1 ohm

Q: A 240V dc series motor has armature and field resistances of 0.5 W and 1 W respectively.  When…

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Q: "In a process plant DC motor is operating at its rated load and speed of 1800 rpm. If its speed…

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A: Given: A DC motor with shunt field winding have VT=96 VRA=1.50 ΩK=0.352 mT=18 Nm

Q: A BC chopper is used in regenerative braking mode of a dc series motor. The dc supply is 600 V the…

A: Given a DC chopper is used in regenerative breaking mode of a DC series motor with, Supply voltage,…

Q: A 240 V shunt motor takes a line current of 80 A. If the field winding resistance is 120 Q and the…

A: According to question: V=240VIL=80ARf=120ΩRa=0.4Ω∵If=VRf⇒If=240120⇒If=2A∵Ia=IL-If⇒Ia=80-2⇒Ia=78A

Q: A. A 440-V series motor runs at 600 r.p.m. taking a current of 50 A. Calculate the speed and…

A: Motor:- It converts the electrical energy into the mechanical energy. On the basis of supply there…

Q: A 12 Volt DC motor rotates at 20,000 RPM. If it’s power is 340 Watts, how many Amps of current is…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Motor Load, Torque, and Power Quality Requirement

An electric motor is a gadget that changes electrical energy into mechanical energy over to follow up on a mechanical burden. The weight set on the motor because of this mechanical movement is known as motor load. Appropriately matching the motor burden to the engine is vital to forestall harm to the engine or wasteful and unnecessary expensive activity. Engines perform such undertakings as moving a thing starting with one spot then onto the next, cutting it, changing its shape, etc. The motors might be evaluated as far as a few variables including power yield, voltage, current, and temperature. Harm to an engine might happen when it is worked under over the top engine load contrasted with its appraised limit.