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

Aci add immediate with carry instruction, ACI  Add Immediate with Carry  ...

ACI  Add Immediate with Carry  Instruction Similar  to ADC instruction 8 bit  data specified  in the  instruction and Carry  are added to the contents  of the  accumulator and

Explain daa instruction, Explain DAA instruction. DAA: The DAA instruct...

Explain DAA instruction. DAA: The DAA instruction follows the instruction ADC or ADD to adjust the result in a BCD result. The DAA instruction performs only with the AL registe

Name the materials used in case of solder, Name the materials used in case ...

Name the materials used in case of Solder and give reasons. Solder : For soft solders tin, lead (in 50-50 ratio) alloy and for hard solders copper- zinc and silver alloy

Design and build a circuit board, Devise a "green" design to improve the el...

Devise a "green" design to improve the electrical plan of a room in your home. How might you reduce electricity use in your home. Initiate and plan 1. Select two rooms in y

Determine the range of the step size, 1. (a) Consider a sinusoidal signal m...

1. (a) Consider a sinusoidal signal m(t) = A cos(2 Π f m t) applied to a delta modulator with step size . Determine the range of the step size so that slope overload will be avoide

Differentiate between dual beam and dual trace oscilloscope, Q. How do you ...

Q. How do you differentiate between dual beam and dual trace oscilloscope? Sol. There are two separate vertical input channels A, B and these use separate attenuator and prea

Mini computers - introduction to microprocessors , Mini Computers Large...

Mini Computers Larger  computer  more  computing  power  having  capability to address  more  memory  and  more  speed  than  microcomputer called minicomputer. These computers

Equivalent series impedance referred to the high-voltage, Q. A 25-kVA, 2300...

Q. A 25-kVA, 2300:230-V, 60-Hz, single-phase transformer has the following parameters: resistance of high-voltage winding 1.5 , resistance of low-voltage winding 0.015 , leakage

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