Which of the following statements proves that Earth has a magnetic field?

  • A
    Earth is a planet rotating about the North-South axis.
  • B
    Earth is surrounded by ionosphere.
  • C
    $A$ large quantity of iron-ore is found in the Earth.
  • D
    The intensity of cosmic rays (stream of charged particles) is more at the poles than at the equator.

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Similar Questions

The dip angle in a vertical plane at an angle of $\cos^{-1} \left( \frac{1}{\sqrt{2}} \right)$ from the magnetic meridian is $60^\circ$. Find the actual dip angle at that place.

At a place,the horizontal and vertical intensities of the Earth's magnetic field are $0.30 \ G$ and $0.173 \ G$ respectively. The angle of dip at this place is.....$^o$

Let $V$ and $H$ be the vertical and horizontal components of the Earth's magnetic field at any point on Earth. Near the North Pole:

At the place where the angle of dip is $60^{\circ}$,what is the relation between the vertical component $Z_{E}$ and the horizontal component $H_{E}$ of the Earth's magnetic field?

The ratio between the total intensity of the magnetic field at the equator to the poles is:

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