What is the most accepted scientific explanation for the origin of the Earth's magnetic field?

  • A
    The presence of a large permanent magnet at the Earth's core.
  • B
    The rotation of the Earth causing the movement of molten iron and nickel in the outer core,known as the dynamo effect.
  • C
    The magnetic properties of the Earth's crust and mantle.
  • D
    The interaction between the Earth's atmosphere and solar wind.

Explore More

Similar Questions

At an angle of $30^{\circ}$ to the magnetic meridian,the apparent dip is $45^{\circ}$. Find the true dip.

At a certain place,the horizontal component of the Earth's magnetic field is $B_0$ and the angle of dip is $45^o$. The total intensity of the Earth's magnetic field at that place will be:

The value of the angle of dip is zero at the magnetic equator because on it:

At a certain place,the angle of dip is $60^{\circ}$ and the horizontal component of the earth's magnetic field $(B_H)$ is $0.8 \times 10^{-4} \,T$. The earth's overall magnetic field is

The angle of dip is $90^{\circ}$ at:

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo