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

Evaluate circular aperture of receiving antenna, Q. A satellite radio trans...

Q. A satellite radio transmitter has P in = 3 W and G t = 30 dB. The receiving antenna has a circular aperture with radius r at the ground station 30,000 km away. Find r in meter

Design of a p only controller, For an operating point half way up the paral...

For an operating point half way up the parallel section and the discharge valve and the discharge fully open, design a proportional only controller which will give closed loop dyna

Automatic voltage booster, Automatic Voltage Booster The functioning o...

Automatic Voltage Booster The functioning of Automatic Voltage Booster (AVB) is same to in which of the series capacitor. Automatic Voltage Booster is an on-load tap changer.

Unconditional return, Unconditional Return RET Instruction: This  instr...

Unconditional Return RET Instruction: This  instruction is used to transfer the program sequence  from subroutine to the calling  program unconditionally. The instruction forma

Draw the equivalent magnetic circuit diagram, 1) Consider the magnetic circ...

1) Consider the magnetic circuit shown in the figure. Steady currents flow in the windings of N 1 and N 2 turns on the outside legs of the ferromagnetic core. The core has a

RC coupled transistor amplifier., why we plot graph to find bandwidth is dr...

why we plot graph to find bandwidth is drawn b/w av/avmax v/s frequency not av v/s frequency?

Explain law all point on wave front seems as new wave source, Whose princip...

Whose principle or law states that each point on a wave front may be considered a new wave source? Is it: w) Snell's Law x) Huygen's Principle y) Young's Law z)

Find the current flow through resistor using thevenin''s, Find the current ...

Find the current flow through resistor 12 Ω using Thevenin's Theorem.

Laplace transform, 1. Find the general solution y(t) of the ordinary di ere...

1. Find the general solution y(t) of the ordinary di erential equation where ω is a non-negative constant. (Consider the ω = 0 and ω > 0 cases separately). 2. Use Laplac

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