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

Why ce configuration is widely used in amplifier circuits, Q. Why CE config...

Q. Why CE configuration is widely used in amplifier circuits? The main ability of an transistor lies in amplifying weak signals. The transistor cannot alone perform this functi

Explain the operation of 8279, Explain the operation of 8279.  Explain the ...

Explain the operation of 8279.  Explain the following terms: (i)  N key Roll over. (ii)  Key board debounce. (iii)  FIFO RAM. Ans The 8279 microprocessor i

What is meant by wait state, What is meant by Wait State? This state is...

What is meant by Wait State? This state is used by slow peripheral devices. The peripheral devices can transmitted the data to or from the microprocessor by using READY input l

Binary division , Binary  Division Similar  to multiplication  divisi...

Binary  Division Similar  to multiplication  division can be seen  multiple  subtractions.  For example  if we have to divide 9 by 4  we can subtract 4 ,2,  times  until is is

Calculate turns ratio, A switch-mode power supply is to be designed with th...

A switch-mode power supply is to be designed with the following specifications: input voltage V s = 48 V ± 10%, output voltage V o = 5 V, switching frequency f s = 100 kHz, outp

Determine l and c of the band reject filter circuit, Q. Determine L and C o...

Q. Determine L and C of the band reject filter circuit of Figure to have a center frequency of 100 kHz and a bandwidth of 5 kHz. Also find the Q of the filter.

Network theorems, what is the limitations of maximum power transfer thorem ...

what is the limitations of maximum power transfer thorem ?

Project, Hello I am doing a Btec degree in Electrical and electronic engine...

Hello I am doing a Btec degree in Electrical and electronic engineering and I was wondering if you can help me complete it because I am behind

Spread time - power semiconductor devices , Spread Time (t s ) During  ...

Spread Time (t s ) During  spread time anode  voltage  falls from 10% I a  to the  on state  voltage  drop  and anode  current  rises  from 90% I a   to final  value  of anode

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