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

Effect of power factor correction capacitors, For a 50kW three phase rectif...

For a 50kW three phase rectifier connected at 415 V to a point of common coupling with a short circuit capacity 500kVA modelled as an inductive source, design filters to make the s

Illustrate bcd-to-decimal decoding, Q. Illustrate BCD-to-decimal decoding w...

Q. Illustrate BCD-to-decimal decoding with a 4-to- 16 decoder, and draw the corresponding truth table.

Organisational trends - power distribution management, Organisational Trend...

Organisational Trends: 1 Organisations are economic and social entities in which a number of persons perform multifarious tasks in order to attain common goals. Four key organ

Find the current through the diode in the circuit, Q. A diode is connected ...

Q. A diode is connected in series with a voltage source of 5 V and a resistance of 1 k. The diode's saturation current is given to be 10 -12 A and the I-V curve is shown in Find

What do you mean by fm stereo, Q. What do you mean by FM Stereo? IT  sh...

Q. What do you mean by FM Stereo? IT  shows the block diagram of an FM stereo transmitter and an FM stereo receiver. The following notation is used: • f L (t), fR(t): Left a

Evaluate the straight-line and actual gain response, Q. Consider the circui...

Q. Consider the circuit shown in Figure in the time domain aswell as in the s-domain. Its transfer function V 2 (s)/V 1 (s) can be shown to be  which is a second-order bandpass tra

File flops - introduction to microprocessors, File Flops The flip fl...

File Flops The flip flop is a one storage biteable   device. The basic  bistable device stores a binary  of inputs  value. the flip flops  are categorized according  to the nu

Basic working principle of laser beam machining process, Define the basic w...

Define the basic working principle , process characteristics,advantages, disadvantages and application of Laser Beam Machining Process.

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