2. An increase in the air gap length of the induction motor causes O increase in the vibration and noise O increase in the efficiency of the motor increase in the output power O increase in the magnetizing current and worsen power factor cos(fi)

2. An increase in the air gap length of the induction motor causes O increase in the vibration and noise O increase in the efficiency of the motor increase in the output power O increase in the magnetizing current and worsen power factor cos(fi)

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 6RQ: Name three factors that determine the torque produced by an induction motor.

See similar textbooks

Related questions

Q: Complete the table with the appropriate values based on the given data. Round your answers to 3…

A: Line current is 3 times of phase current and lags by 30 degree. Here Ia, Ib, Ic are the line…

Q: A JFET phase-shift oscillator having gm = 6000 μS, rd = 36 kΩ, and a feedback resistor R = 12 kΩ is…

Q: 2. Find Vo in the circuit of figure shown below using Nodal Analysis and Thevenin's Theorem. -6Q…

Q: V₁ Solve for equivalent ro. H ' 2.2 ΚΩ 2 Mohms 60 kohms 3.3 kohms 5.5 kohms h=-0.99 h=14.352 hob=…

A: Here they have mentioned a common base amplifier circuit and our work is to calculate the value of…

Q: 15 45 2 20v 65 ни зл 12V wit 2-22 W 24 V FIND THE CURRENT IN THE 3 BRANCHES.

A: The circuit diagram is shown below,

Q: A rectangular waveguide has dimensions a = 6 cm and b = 4 cm. (a) Over what range of frequencies…

A: Solution- Rectangular waveguide , a = 6 cm b = 4 cm a) The range of frequencies for single mode,…

Q: Calculate the gain (A = //V) without feedback for the circuit below. Show the details of your work.…

A: In the given question they have mentioned a common emitter amplifier with emitter resistance RE.…

Q: 1. Given an ade of 0.998, determine Ic if IE = 4 mA. 2. Determine ade if IE = 2.8 mA and IB = 20 µA.…

A: In this question we will solve BJT related problems.... Note :- as per our guidelines, I am supposed…

Q: A 220 V, 60 Hz, supply is connected to 200-turn armature winding of reluctance 1.7×10 At/Wb. Find…

A: Given No of turns ,reluctance of an armature winding connected to a AC supply. We need to…

Q: P511 find the vorton's equivalent Circuit for the network to the resistor R of the networks of Fig 2…

A: In this question, We need to determine the Norton equivalent circuit across the terminal resistance…

Q: The electrostatic force on a small sphere of charge 0.4 uC due to another small sphere of charge 0.8…

Q: Q2 A parallel RLC resonant circuit has a resistance of 250 ohms. The bandwidth at resonant is 100…

A: In parallel rlc circuit L and C valuce calculated as

Q: 1) Find the voltage at node A in the given circuit by applying nodal analysis.

A: The node voltage can be calculated by using the nodal analysis. The node equation can be obtained by…

Q: 4. A 200-kVA, 2300/460V, 60Hz two-winding transformer is to be used as an autotransformer to…

Q: 12.0 V 5.00 Ω ΜΕ Prob # 29, p. 349 |3.00 V | 18.0 V 14.00 Ω |2.00 Ω της --- 3.30 Ω - 31

Q: Consider Figure 70. Solve for V. Use the following values: R1-Rf-112 kohms, R2=R3-17 ohms, V₁- 0.9V…

Q: Find out the zero-phase sequence components of the following set of three unbalanced voltage…

A: In this question, We need to choose the correct options What is the zero-phase sequence components…

Q: Enlist the power quality issues for renewable energy integration

A: Renewable energy is also called green energy because it is generated from Energy resources which are…

Q: Q5- A)- Select the correct answer for the alternatives given 1- Wave windings are used in d.c…

A: As per guidelines given to us we can only provide the solution of first three subpart in multi part…

Q: A group of a small appliances on a 60Hz system requires 20kVA at 0.85 pf lagging when operated at…

Q: Just list, without detailed description. Give at least 5 examples of energy storage systems.

Q: The more reliable standard industry signal is

A: In this question we will write about standard industry signal....

Q: Solve the following problem using Kirchhoff's Rule. Show the equivalent circuit when solving for the…

Q: le for steam-turbines?

A: Three Phase Synchronous machine- This Synchronous machine comprises of rotor and stator as it basic…

Q: In a balanced Delta-connected circuit, the phase currents are equal to the line currents. True…

A: Balanced delta connected circuit : The connection of the circuit in which all three phase voltage…

Q: Problems 1. For the following network, form the bus admittance matrix by inspection method. The…

A: As per Bartleby policy we can answer only one question at a time. So I am solving first question for…

Q: 13. _______ is a type of photoelectric sensor that requires its target object to be reflective

A: We need to tell about the type of photo sensor

Q: solve for the collector saturation current of an emitter stabilized bias circuit with Vcc=18V,…

A: We need to find out saturation current

Q: can you give the feature, advantage and benefit of LWT700 Whirlpool washing machine

A: Here we discuss the feature, advantage and benefit of LWT700 Whirlpool washing machine.

Q: To convert a 2 mA meter with internal resistance of 120 ohm into an ammeter of range 0-200 mA, the…

A: Given: Meter resistance, Rm=120 Ω Meter current, Im=2 mA Measured current, I=200 mA

Q: Q1:In the figure shown find the current in each resistor. 252 15 V 10 V 452 ли 652 8Ω

Q: Solve the transfer function T(s) =Y (s) /U (s) if b1=b2 = b3 = 1/s and al=a2 = a3 = 10 20pts लि U

A: Given signal flow graph with different loop. The transfer function can be solved by using Mason's…

Q: Q3-(A)- Indicate whether the following statements are true or false and correct the false statements…

A: DC series motor: When a DC motor has the field winding is in series with the armature through the…

Q: discuss some design specification of a typical outlet.

A: Electrical outlets 15-amp duplex receptacles are the most popular electrical outlets; 15-amp outlets…

Q: The circuit shows an unbalanced electrical installation powered by a positive sequence symmetrical…

A: Given: Load-1:P1=950Wcosϕ1=0.5 LaggingLoad-2:P2=1.14Wcosϕ2=1Load-3:P3=760Wcosϕ3=0.5 leadingline…

Q: How does change in resistance affect the speed of a DC motor? A. Increasing the armature resistance…

Q: Q6-Indicate whether the following statements are true or false and correct the false statements. 1-…

A: As per Guidelines we are supposed to do only First 3 Questions when multiple questions are given, so…

Q: Given the current through a resistor of 6 Ohms is 0.5 Amps, Find power absorbed by the resistor.

A: Given: Current through a resistor, I=0.5 A Resistance, R=6 Ω

Q: Given the vector field in cylindrical coordinate system: A = 2psinócospa, + (rcos2o-rsin²o)a, + pcos…

Q: What are the different types of Insulators, give examples for each type. Compare the glass insulator…

A: Materials can be classified into three categories namely conductors, insulators and semiconductors.…

Q: Evaluating the Maxwell's Mesh Current Analysis equations will yield the magnitude of 12 as 40 24V C…

Q: A commercial Building, 60hz, Three Phase System, 230V with total highest Single Phase Ampere Load of…

A: Given :f = 50 Hzv = 230VP = 25 Hp1-ϕ → IL = 1088 A3-ϕ → IL = 206 AIFL = 68 A

Q: Consider a carrier signal which is amplitude modulated by a single-tone sinusoidal message signal…

A: We need to find out the percentage power saving

Q: 2. Using the Euclidean algorithm, find the gcd of each pair of integers. (a) 28. 12 (b) 784, 48 (c)…

A: The Euclidean algorithm, often known as Euclid's algorithm, is a fast way to find the greatest…

Q: A rectangular waveguide has dimensions a = 6 cm and b = 4 cm. (a) Over what range of frequencies…

A: FREQUENCY : dc GIVEN THAT ; dimensions : a=6 cma=0.06mb=4cmb=0.04m

Q: 3. An ON-OFF temperature controller controls a room air conditioner. The bandwidth (OH) is set to 4,…

Q: Calculate the rotor reactance per phase of an 8 pole, 50Hz, 30 induction motor which develops a…

A: In this question We need to determine the reactance of the rotor? If resistance of the rotor R=0.5…

Q: Two identical coils connected in parallel, each with a coefficient of self-induction (L), each…

Q: For the unity feedback system shown below ,answer the following questions: R(s) + E(s) C(s) G(s)…

A: given here a unity feed back system block diagram and its overall transfer function.here we have to…

Q: The volume of a transformer core built up of silicon sheet steel laminations is 12000 cm3. If the…

A: Given Few parameters of a transformer,we need to find the hysteresis loss. Please find the below…

Concept explainers

Analog to Digital Converters

The analog-to-digital converter (ADC) allows circuits controlled by microprocessors, Arduinos, Raspberry Pi, and various reasonable digital circuits to be connected to the real world. In the real world, analog signals have a continuous stream of information from a variety of sources and sensors capable of measuring sound, light, temperature, or movement, in addition to the many digital systems that interact with their environment by measuring analog signals from those transducers.

Question

100%

Which answer is correct for Question 2

2. An increase in the air gap length of the induction motor causes
*
O increase in the vibration and noise
O increase in the efficiency of the motor
increase in the output power
O increase in the magnetizing current and worsen power factor cos(fi)

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

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) to convert fixed dc to variable dc O reverse the current direction in the rotating windings each half turn
A dc series motor is running at rated speed without any additional resistance in series if an additional resistance is placed in series, the speed of motor a) Increases C ocillates around the rated speed O decreases O remains unchanged O
Frequency of emf in the stator of a 8 pole induction motor is 50Hz and the rotor emf frequency is 1Hz. The motor speed is ................ Answer
An induction motor is an O stepper motor O asynchronous machine. O DC machine O synchronous machine example of
13 A three-phase induction motor has a mechanical speed of 720 [rpm] and at full load has a slip of 5%. The number of poles and the frequency of this motor are: 4 poles 50 Hz. 6 poles 50 Hz. 8 poles 50 Hz. 6 poles 60 Hz.
In an induction motor, if the rotor is locked, then the rotor frequency of induction motor will be: 1. Equal to the supply frequency 2. Less than the supply frequency 3. More than the supply frequency 4. Zero
The frequency of rotor current in an induction motor is slip times the frequency of stator current. slip times the frequency of supply, One by slip times the frequency of stator current. One by slip times the frequency of supply
A three phase induction motor 2 points operates with a rotor speed of 1440 rpm and develops a torque of 66.32NM at full load. The full load power output is * 11 kW 8 kW O 10 kW 9 kW
A four-pole induction motor drives a load at 2575 rpm. This is to be accomplished by using an electronic converter to convert a 400-V dc source into a set of three-phase ac voltages. ▾ Part A Find the frequency required for the ac voltages assuming that the slip is 4 percent. The load requires 2 hp. Express your answer to three significant figures and include the appropriate units. f= Submit ▾ Part B Value μÀ Submit I= Value Provide Feedback ^ Request Answer If the dc-to-ac converter has a power efficiency of 85 percent and the motor has a power efficiency of 80 percent, estimate the current taken from the dc source. Express your answer to three significant figures and include the appropriate units. 4 Ò Request Answer Units ? Units ?
6- Which of the following supply is given to the rotor winding of 3-Phase Induction Motor: a) DC Supply b) AC Supply c) No Supply d) Pulsating Supply 7- 3-Phase Induction Motor will have Starting Torque and Starting Current a) High, High b) Low, Low. c) High, Low d) Low, High 8- Which of the following method is used for controlling the speed of an induction motor: a) Changing number of stator poles b) Supply voltage control c) Frequency control d) All the options are correct 9- Which of the following method cannot be used for starting of 3-Phase Squirrel Induction Motor: a) Star-Delta Starting b) Line resistor startling c) transformer Starter d) Rotor Resistance Starting 10- The rotor of a stepper motor has no: a) windings b) commutator c) brushes d) all of the above
The starting torque of slip ring induction motor is High Negligible Medium O Low
At standstill condition , the slip of induction motor is 1. Select one: O True O False