Question

How many earth magnetic moments in joule per time inverse?

Answer 1

Hint: The magnetic moment is defined as the magnetic strength and orientation of a magnet or another object that generates a magnetic field. Loops of electric current, permanent magnets, elementary particles, various molecules, and many astronomical objects all have magnetic moments.

Complete step by step answer:
The geomagnetic field, also known as the Earth's magnetic field, is the magnetic field that extends from the Earth's interior into space and interacts with the solar wind, a stream of charged particles emitted by the Sun. Electric currents are generated by the motion of convection currents of molten iron and nickel in the Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.

The Earth's magnetic field magnitude at its surface ranges from 25 to 65 T. (0.25 to 0.65 gauss). It is approximated by a magnetic dipole field currently tilted at an angle of about 11 degrees concerning the Earth's rotational axis as if an enormous bar magnet were placed at that angle through the center of the Earth. Here,
The radius of earth = \[6371\times {{10}^{3}}m\]
The perimeter of the circle about the center of earth = \[2\pi \times 6371\times {{10}^{3}}\]=\[4\times {{10}^{7}}m\]
Distance traveled by light in 1 sec =\[3\times {{10}^{8}}\]
No. lights can travel about earth =\[\dfrac{3\times {{10}^{8}}}{4\times {{10}^{7}}m}=7.5\]=\[7\] times.

Thus, the answer is \[7\] times.

Note:The Earth's magnetic field deflects most of the solar wind, whose charged particles would otherwise deplete the ozone layer, which protects the Earth from harmful ultraviolet radiation. One mechanism for stripping is for gas to become trapped in magnetic field bubbles, which are then ripped off by solar winds. Calculations of the loss of carbon dioxide from Mars' atmosphere as a result of ion scavenging by the solar wind indicate that the dissipation of Mars' magnetic field resulted in a near-total loss of its atmosphere.