Voltages relative to earth, Physics

Assignment Help:

Voltages relative to earth

It is very common in electrical circuits to have an earth connection. This earth connection has no effect on potential differences across components, however it does affect the values of the potentials or voltages at points in the circuit.

2450_volatage reative to earth.png

The earth is a reference point and considered to be at zero volts. Potential differences between earth and the negative terminal of the supply result in negative voltages and potential differences between earth and the positive terminal result in positive voltages. It should be noted that due to static build up on the airframe, the earth connection (airframe) of an airborne aircraft is unlikely to be at zero potential with respect to the ground

2238_volatage reative to earth1.png

You should also note that earth connections, for example to the chassis of an equipment or the airframe of an aircraft, are often used as the current return lead in an electrical circuit.


Related Discussions:- Voltages relative to earth

Calculate the thickness of the film, Q. A light of wavelength 58900A falls ...

Q. A light of wavelength 58900A falls normally on a thin air film, 6 dark fringes are seen between two points. Calculate the thickness of the film. 2μt = nλ Thickness of th

Define rms value of ac, Q. Define: rms value of AC. RMS value of a.c...

Q. Define: rms value of AC. RMS value of a.c. The rms value of alternating current is described as that value of the steady current which when passed through a resisto

How far does the cue ball travel after strikes other ball, A cue ball on a ...

A cue ball on a billiards table travels at 1.0 m/s for 2.0 s. After striking another ball, it travels at 0.80 m/s for 2.5 s at an angle of 60.0° from its original path. a. How

Medical uses of cryogenics-cryosurgery, Medical uses of cryogenics Low tem...

Medical uses of cryogenics Low temperature have been used for long term preservation of blood, sperms, bone marrow and tissues. Cryosurgery The cryogenic methods used to

Tesla, Tesla; T (after N. Tesla, 1870-1943): The derived SI unit of ma...

Tesla; T (after N. Tesla, 1870-1943): The derived SI unit of magnetic flux density, described the magnetic flux density of magnetic flux of 1 Wb by an area of 1 m 2 ; thus it

How is radiation emitted from the body, How is radiation emitted from the b...

How is radiation emitted from the body? The body radiates energy by thermal conduction by the skin to the air, clothes, etc, around the body. A small amount of energy would als

Show conjugate complex poles, Q. Show Conjugate Complex Poles? It is po...

Q. Show Conjugate Complex Poles? It is possible that some of the poles of Equation are complex. Since the coefficients ak in Equation are real, complex poles occur in complex c

Motion, Derive the equation of uniformly acceleration motion by analytical ...

Derive the equation of uniformly acceleration motion by analytical method.

Aget an expression for lateral shift, Get an expression for lateral shift p...

Get an expression for lateral shift produced by a parallel sided glass slab placed in air.

Explain isolated system, ISOLATED SYSTEM: "When a number of bodies are ...

ISOLATED SYSTEM: "When a number of bodies are like that they can exert force upon one another and no external agency exerts a force on them, they are said to form an isolated s

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