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

Types of cells and batteries, Types of cells and batteries are:- a.  C...

Types of cells and batteries are:- a.  Carbon-zinc cell b. Nickel-cadmium cell c.  Alkaline celld.  d.  Edison cell e.  Mercury cell

Classify the different types of insulating materials, Classify the differen...

Classify the different types of insulating materials with reference to their limiting safe temperatures for use. On the basis of insulating materials and their limiting safe te

Role of consumers in distribution reform, Role of Consumers in Distribution...

Role of Consumers in Distribution Reform In the reforms procedure, mandatory metering for all consumers is being implemented.  Consumers should implement this measure. Public

What is the use of modem control unit in 8251, What is the use of modem con...

What is the use of modem control unit in 8251? The modem control unit handles the modem handshake signals to coordinate the communication among the modem and the USART.

Hexadecimal to binary conversion , Hexadecimal  to Binary Conversion ...

Hexadecimal  to Binary Conversion Conversion from  hexadecimal  to binary  is the  reverse  of this  process. Express each  hexadecimal  digit  in four bit  binary  equivalent

Current and voltage polarity, why Direct current flow through semiconductor...

why Direct current flow through semiconductors but alternating current cannot flow?

Actuators , Actuators These devices convert electromagnetic energy to...

Actuators These devices convert electromagnetic energy to mechanical energy to produce intermittent mechanical movement (e.g. opening a valve in a central heating system or c

Determine the dielectric constant of air in practically, The dielectric con...

The dielectric constant of air is practically taken as (A) more than unity.                         (B) Unity.  (C) less than unity.                           (D) Zero.

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