Explain earth’s magnetic field , Physics

Assignment Help:

As per the most established theory it is because of the rotation of the earth where by the several charged ions there in the molten state in the core of the earth rotate and constitute a current.

1486_22.png

(1) The magnetic field of earth is similar to one which would be obtained if a enormous magnet is assumed to be buried deep inside the earth at its centre.

(2) The axis of rotation of earth is known as geographic axis and the points where it cuts the surface of earth are known as geographical poles (Ng, Sg). The circle on the earth's surface perpendicular to the geographical axis is known as equator.

(3) A vertical plane passing by the geographical axis is known as geographical meridian.       

(4) The axis of the huge magnet supposed to be lying inside the earth is known as magnetic axis of the earth. The positions where the magnetic axis cuts the surface of earth are known as magnetic poles. The circle on the earth's field perpendicular to the magnetic axis is known as magnetic equator.

 

 


Related Discussions:- Explain earth’s magnetic field

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

Explain newtons third law - linear motion, Explain Newtons Third Law - Line...

Explain Newtons Third Law - Linear Motion Stating that a force is just a push or a pull is a bit of a simplification.  If we exert a push or a pull on an object then the object

Intensity, example of earth quake intensity

example of earth quake intensity

Find the resistance r in the circuit, The current is an RL circuit drops fr...

The current is an RL circuit drops from 1.1 A to 13 mA in the first second following removal of the battery from the circuit. If L is 12H, find the resistance R in the circuit.

Liquid in Glass thermometer, Advantage and disadvantage of liquid in Glass ...

Advantage and disadvantage of liquid in Glass thermometer

How does the pole strength of a bar magnet change, How does the (i) pole st...

How does the (i) pole strength and (ii) magnetic moment of each part of a bar magnet change if it is cut into two equivalent pieces transverse to its length?

Define tangent galvanometer, It is an instrument which can detect/calculate...

It is an instrument which can detect/calculate very small electric currents. It is also called as moving magnet galvanometer. It has of three circular coils of insulated copper wir

What do you mean by nuclear fission, What do you mean by nuclear fission? I...

What do you mean by nuclear fission? Illustrate liquid drop model of nuclear fission? Difference between nuclear fission and nuclear fusion. State the properties of  α, β, γ ra

Explain critical mass, Critical Mass: The minimum mass of Uranium requi...

Critical Mass: The minimum mass of Uranium required for smooth fission chain reaction is called as critical mass.

Young''s double slits experiment, describe young''s double slits experiment...

describe young''s double slits experiments for interference of light ?

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