Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Consider the 220-V, 1800-r/min dc motor, controlled by a three-phase fully controlled rectifier from a 60-Hz ac source. The armature-circuit resistance and inductance are 1.5 and 30 mH, respectively.
(a) When the motor is operating in continuous conduction, find the ac source voltage required to get rated voltage across the motor terminals.
(b) With the ac source voltage obtained in part (a), compute the motor speed corresponding to α = 60° and Ta = 25 N·m assuming continuous conduction.
(c) Let the motor drive a load whose torque is constant and independent of speed. The minimum value of the load torque is 1.2 N·m.
Calculate the inductance that must be added to the armature circuit to get continuous conduction for all operating points, given that ψ = tan-1 (ωLa/Ra) = 1.5 rad, Tan > 0.006, and all points on the Tan-ωmn plane lie to the right of the boundary between continuous and discontinuous conductions.
Consider a colloidal suspension of latex particles confined between two plates. The plates are charged, so there is an electric potential difference V between them (as shown). The
Q. Explain Common Emitter Circuit With The Help Of A Circuit Diagram? Most transistor circuits have the emitter,rather than the base,as the terminalcommon to both input and out
Please can you explain the operation of a transistor in a Common Emitter Class A audio Amplifier?
I need the solutions for this assignment
Technical Losses in Power Systems The technical losses in power systems occur because of energy dissipated in the conductors and equipment used for transmission, transformat
Explain In brief about the Robots - Robot is programmed with a series of instructions that enable it to carry out a series of tasks - On the other hand, an operator manually
Q. Differential amplifier to eliminate the common-mode voltage? The transducer in some cases may have a local ground that cannot be disconnected. In such a case, a separate gro
Question a) Explain, with the aid of diagrams, the differences between the Princeton and Harvard microprocessor architectures. b) Describe why the principle of locality of r
Extrinsic Material: THE CHARACTERISTICS OF SEMI CONDUCTOR material can be alter significant bin addition of certain impurity atoms into the relatively pure se conductor mater
Q. Name all the switching schemes used in a digital exchange. How call processing occur? Ans: The basic types of switching systems used are: 1. Stronger Switching System
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd