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

What is raman shift, Q. What is Raman shift? In 1928 Sir C.V. Raman fi...

Q. What is Raman shift? In 1928 Sir C.V. Raman fined out experimentally that the monochromatic light is scattered when it is allowed to pass through a substance. The scattered

How can electricity make magnetic fields?, How can electricity make magneti...

How can electricity make magnetic fields? In 1820, Oersted discovered that an electric current can produce a magnetic field. He happened to notice a compass move when he conn

Josephson effects, Josephson effects (B.D. Josephson; 1962) Electrical ...

Josephson effects (B.D. Josephson; 1962) Electrical effects observed while two superconducting materials are separated through a thin layer of insulating material.

Projectile motion - distance from the launch point, A projectile is launche...

A projectile is launched from zero height with an initial angle, θ, above the horizontal and with an initial velocity, vi. a. Show that the range of the projectile the distance

Planck constant, Planck constant; h: The fundamental constant equivale...

Planck constant; h: The fundamental constant equivalent to the ratio of the energy of a quantum of energy to its frequency. It refer to the quantum of action. This contains th

Motion angular velocity, A scooterist is racing at a speed of 72 km per hou...

A scooterist is racing at a speed of 72 km per hour. If the radius of the wheel is 20 cm, find the angular speed of the wheels.   Ans) 72kmph=20m/s 20cm=0.2m; v=rw w=v/r w=20/0

What are the majority carriers in p-type semiconductor, In p-type semicondu...

In p-type semiconductor the majority carriers are (A) Holes. (B) Positive ions. (c) Electrons. (D) Negative ions. Ans: In p-type semiconductor the majori

Lens, types of lenses and their explanation

types of lenses and their explanation

GRAMMAR CHECK, And then did he sit up.IS THIS A SENTENCE OR A QUESTION

And then did he sit up.IS THIS A SENTENCE OR A QUESTION

Explain the trajectory of the particle, Question: A positively-charged ...

Question: A positively-charged particle is travelling southward in a downward-directed uniform magnetic field. The magnetic force is the merely force if any acting on the parti

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