Find the pull that must be exerted by the spring, Electrical Engineering

Assignment Help:

Q. Figure can also be considered as a simple model of a magnetically operated relay that is commonly used for the automatic control and protection of electric equipment. Consider the core and armature (shown as "Bar" in Figure of the relay to be constructed out of infinitely permeable magnetic material. The core has a circular cross section and is 1.25 cm in diameter, while the armature has a rectangular cross section. The armature is so supported that the two air gaps are always equal and of uniform length over their areas. A spring (not shown in the figure), whose force opposes the magnetic pull, restrains the motion of the armature. If the operating coil has 1800 turns carrying a current of 1 A, and the gaps are set at 0.125 cmeach, find the pull that must be exerted by the spring. You may neglect leakage and fringing.

2493_Obtain an expression for the induced emf.png


Related Discussions:- Find the pull that must be exerted by the spring

Realize various dividers in the schematic representation, Q. Counters are u...

Q. Counters are used to realize various dividers in the schematic representation of the digital clock shown in Figure. The blocks labeled "logic array" are logic gate combinations

Mov - move instruction, MOV ( Move ) Instruction It copies  the content...

MOV ( Move ) Instruction It copies  the contents of the sources register into destination register. The general format is . This  instruction  is used  to copy 8 bit  from s

Basic requirement of semiconductor laser, What is basic requirement of semi...

What is basic requirement of semiconductor laser? Draw its label diagram and explain its working with necessary theory. Write down the applications of semiconductor laser.

Explain the suitability of aluminium, Explain the suitability of aluminium ...

Explain the suitability of aluminium  that is used as electrical conducting materials. Aluminium : Conductors are appropriate for ambient and very high temperature. Use of alu

System of forces.., Example of unlike coplaner parallel force''

Example of unlike coplaner parallel force''

atex equipment, I have an enclosure which doesnt comply with the atex dire...

I have an enclosure which doesnt comply with the atex directive, they want to install it in outside in a safe area of an offshore platform. They have produced an atex cert and want

DC machine, a dc generator has 300 turns in each field coil. the flux per p...

a dc generator has 300 turns in each field coil. the flux per pol is 0.1 wb. find the average value of EMF inducet in field winding in the flux decays to zero in 0.3 second?

What are the performance measures of oscillator circuits, Q. What are the p...

Q. What are the performance measures of oscillator circuits? 1. Stability: This is determined by the passive components. R, C and L determine frequency of oscillations. If R ch

Illustrate gas power plant, With the help of schematic diagram illustrate G...

With the help of schematic diagram illustrate Gas Power Plant. Describe the effect of reheating, regeneration and inter cooling with the help of suitable T-S diagrams. Give the

Calculate the bandwidth of the new signal, A signal comprises a bandwidth o...

A signal comprises a bandwidth of 1kHz centred around 1kHz.  A sine wave along with a frequency of 1250Hz is added to the signal. The bandwidth of the new signal is: 2250Hz

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd