Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Electrical & Electronics Expert

problem 1: Describe what an Electric Drive is and describe different types of Electric drives.

problem 2:

a) Derive an expression for the temperature rise of equipment in terms of heating constant.
b) Derive an expression for the time dependent temperature as the electrical apparatus cools, in terms of the cooling time constant.

problem 3: Describe various types of loads based on active, passive torque, speed-torque and output-time.

problem 4:

a) Describe what do you mean by load equalization and how it is achieved?
b) A 250V D.C. shunt motor with constant field excitation drives a load, the torque of which varies as the square of the speed.

The armature current is 20A, when the motor is running at 500rpm. Find out the percentage reduction in the speed of the motor when a resistance of 20Ω is joined in series with the armature. Neglect the losses in the motor.

problem 5: Describe different speed control methods for both A.C., D.C. Motors.

problem 6:

a) Describe in brief about different types of Resistance heating.
b) Describe in brief about different types of dielectric heating.

problem 7: Describe in brief about different types of Induction heating.

problem 8: prepare down the applications of induction heating. What are the factors to be considered for inductor design in the induction heating?

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M93633
  • Price:- $70

Priced at Now at $70, Verified Solution

Have any Question? 


Related Questions in Electrical & Electronics

1 rework problem with the assumption that the momentum of

1. Rework Problem with the assumption that the momentum of the incoming air at section (1) is zero. Determine the exit velocity, v, and the magnitude of the pressure drop at section (1). 2. Air of density 1.21 kg/m 3  is ...

Givena perform all the necessary tests and determine if

Given (a) Perform all the necessary tests and determine if these fields represent a uniform plane wave propagating in a perfect dielectric medium. (b) Find the permittivity and the permeability of the medium.

A communication link at a frequency of 30 mhz uses a

A communication link at a frequency of 30 MHz uses a half-wave dipole for the transmitting antenna and a small loop (directivity equal to 1.5) for the receiving antenna, involving a distance of 100 km. The antennas are o ...

The key in des is 56 bits assume eve the intruder tries to

The key in DES is 56 bits. Assume Eve, the intruder, tries to find the key using a brute-force attack (tries all of the keys one by one). If she can try one million keys (almost 220) in each second (using a powerful comp ...

1 discuss the duality between the radiation fields of a

1. Discuss the duality between the radiation fields of a small circular loop antenna with those of a Hertzian dipole at the center of the loop and aligned with its axis. 2. Compare the radiation resistance and directivit ...

1 why can the magnetic flux density vector be expressed as

1. Why can the magnetic flux density vector be expressed as the curl of another vector? 2. Discuss the analogy between the magnetic vector potential due to an infinitesimal current element and the electric scalar potenti ...

1 a determine the transfer function vosv1 s for the circuit

1. (a) Determine the transfer function Vo(s)/V1 (s) for the circuit shown below. (b) From the transfer function identify what type of filter it is. (c) Justify your answer of part b 2. (a) Draw the circuit of a free runn ...

1 considering the second hand on your watch to be a vector

1. Considering the second hand on your watch to be a vector, state its polarization. What is the frequency? 2. What is a phasor? 3. Is there any relationship between a phasor and a vector? Explain. 4. Describe the phasor ...

Assignment1 a 1-mhz plane wave is incident from air on an

Assignment 1. A 1-MHz plane wave is incident from air on an infinite copper sheet. If the amplitude of the incident E-field is 100 V/m, find τ, Γ, δ and the magnitude of electric and magnetic fields at a distance of one ...

In the first approach to streaming stored audiovideo figure

In the first approach to streaming stored audio/video (Figure 28.24), assume that we need to listen to a compressed song of 4 megabytes (a typical situation). If our connection to the Internet is via a 56-kbps modem, how ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro