GEOLOGY

EARTH SCIENCE

MAGNETISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Is earth a magnet?
A
Maybe
B
No
C
Yes
D
It never was and it never will be
Explanation: 

Detailed explanation-1: -The crust of the Earth has some permanent magnetization, and the Earth’s core generates its own magnetic field, sustaining the main part of the field we measure at the surface. So we could say that the Earth is, therefore, a “magnet."

Detailed explanation-2: -William Gilbert said earth behaves itself like a massive magnet.

Detailed explanation-3: -Generated by the motion of molten iron in Earth’s core, the magnetic field protects our planet from cosmic radiation and from the charged particles emitted by our Sun. It also provides the basis for navigation with a compass.

Detailed explanation-4: -Jupiter, Saturn, Uranus, and Neptune all have magnetic fields much stronger than that of the Earth. Jupiter is the champion-having the largest magnetic field.

Detailed explanation-5: -A freely suspended magnetic needle always rests in geographic north-south direction. Neutral points are obtained on plotting the field lines of a magnet.

There is 1 question to complete.