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

Explain multiplexing systems, Q. Explain Multiplexing Systems? A multip...

Q. Explain Multiplexing Systems? A multiplexing system is one in which two or more signals are transmitted jointly over the same transmission channel. There are two commonly us

Critical rate of rise of voltage - thyristor , Critical Rate of Rise of Vol...

Critical Rate of Rise of Voltage It  depends on  the junction temperature higher  the junction  temperature lower  the critical rate of  rise of  voltage. It is also known  as

Hybrid meters, Hybrid Meters These meters have electronic measurement ...

Hybrid Meters These meters have electronic measurement circuits but show is by impulse counters/stepper motors. Accuracy is classically class 1.0 or 2.0 and commonly these met

Digital Electronics, Design a MOD-6 synchronous counter using T Flip-Flops....

Design a MOD-6 synchronous counter using T Flip-Flops.

Role of electricity regulatory commission in kpi, Role of Electricity Regul...

Role of Electricity Regulatory Commission in KPI The new Electricity Act, 2003, has empowered Electricity Regulatory Commission (ERC) to play an extremely decisive role in all

Abrasive jet machining system, Describe the effect of following parameters ...

Describe the effect of following parameters on working rate and accuracy of material removal in AJM. (i) Grain size (ii) Stand off distance (iii) Jet velocity. Draw sch

Mention the categories of instruction, Mention the categories of instructio...

Mention the categories of instruction and give two examples for each category The instructions of 8085 can be categorized into the following five Data transfer MOV Rd,Rs

Addition of binary numbers , Addition of binary numbers Example:   Ad...

Addition of binary numbers Example:   Add  110010102 ( -510). and 00000101 2 (+5 10 ) Solution :                         Binary                                   signed

Zener diodes, At what value of electric field at a junction does zener brea...

At what value of electric field at a junction does zener breakdown takes place

Digital communication systems, Q. Digital communication systems? Today ...

Q. Digital communication systems? Today digital communication systems are in common use, carrying the bulk of our daily information transmission through a variety of communicat

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