Thermal –root , Electrical Engineering

Assignment Help:

A moving coil galvanometer consists of a coil  in a uniform magnetic field Bo, suspended fro a fibre of torque constant C, current I produces a deflection O=nABoi/c where n is the number of turns  and A is the area of the coil. The period of oscillation T=2?(I/C)1/2 where I is the moment of inertia. The resistance of the coil and the circuit in which it is placed is adjusted to give a critical dumping Rc=n2 A2Bo2/2(ic)1/2 . if the minimum detectable current produces deflection equal to thermal -root mean square value O, show that minimum current is given by

imin  =( ?KT/ TRc)1/2

 


Related Discussions:- Thermal –root

Determine the electromagnetic force on the plunger, Q. Consider the electro...

Q. Consider the electromagnetic plunger shown in Figure. The λ-i relationship for the normal working range is experimentally found to be λ = Ki 2/3 /(x+t), where K is a constant. D

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

Discuss the control words of ic8259, Discuss the control words (ICWS) of IC...

Discuss the control words (ICWS) of IC8259. The Intel 8259 is a single chip programmable interrupt controller. It is compatible with 8086, 8088 and 8085 microprocessor. It is a

What is the clock frequency of 8086, What is the clock frequency of 8086? ...

What is the clock frequency of 8086? Internal clock Frequency 5 MHz 8MHz  External Clock Frequency 15MHZ 24MHZ

Full wave rectifier with filter, what is the theory for full wave rectifier...

what is the theory for full wave rectifier with c filter

Determine the location and the value of the point charge, Q. The electric f...

Q. The electric field intensity due to a point charge in free space is given to be Determine the location and the value of the point charge.

Write a note on superconductors, Write a note on superconductors. Super...

Write a note on superconductors. Superconductors- The resistivity of most metals rises with increase in temperature and vice-versa. Some metals and chemical compounds are there

Instrumentation, explain measurement of frqueny and phase using cro

explain measurement of frqueny and phase using cro

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