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

Wien bridge, How i prepare a wien bridge for my college assignemen?

How i prepare a wien bridge for my college assignemen?

Binary address does the dot-decimal ip address , i. Each computer related t...

i. Each computer related to the public internet has a unique Internet Protocol address caleed as the IP address. The IP address is a 32-bit address. What is the maximum number of c

Digital electronics, Digital Electronics: We have study the fundamenta...

Digital Electronics: We have study the fundamentals of Digital circuits. Primary we have studied the mathematics of Binary numbers also called as Boolean algebra and how to im

Explain priority interrupts of 8085, Explain priority interrupts of 8085. ...

Explain priority interrupts of 8085. The 8085 microprocessor has five interrupt inputs. They are TRAP, RST .5, RST 6.5, RST 5.5, and INTR. These interrupts have a fixed prio

E. mechanics, a train weight 5 megaN is taking a slope of 1 in 200 at 45 km...

a train weight 5 megaN is taking a slope of 1 in 200 at 45 kmper hour.the engine put in 100 kw.determine the power to be put in by the engine it the train take the slope up of 1 in

Explain the synchronous machines, Explain the Synchronous Machines? A s...

Explain the Synchronous Machines? A synchronous machine, unlike an induction (or asynchronous) machine, only develops torque at a fixed, so called, synchronous speed - n s whi

Rlc - rotate accumulator left instruction , RLC  Rotate Accumulator Left I...

RLC  Rotate Accumulator Left Instruction This  instruction also rotates the contents of the accumulator towards  left by one bit. The  D 0 bit  moves  to D 1  bit moves to D

What is meant by blanking, a. Explain the following terms: (6) (i) Persi...

a. Explain the following terms: (6) (i) Persistence of vision (ii) Flicker in motion pictures b. What is meant by blanking? What is the need of blanking pulses? Compare th

Device switching losses and snubbers, May I know if your site can help me w...

May I know if your site can help me with design a snubber and model the circuit using LTSpice software?

Determine the current through each resistor, For the circuit of Fig 1a: ...

For the circuit of Fig 1a: (i) Using Ohm's Law , determine the equivalent resistance across the battery (ii)  determine the current through each resistor (iii) the arrang

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