Question

Which of the following is/are true about the Earth’s  Magnetic Field?
I. Earth Magnetic Field is shifting from Canada and moving towards Siberia. 
II. The Magnetic Pole is moving fast because of turbulence in Earth’s liquid outer core. 
III. The constant shift is a problem for compasses in smartphones and some consumer electronics. IV. GPS will also be affected by the fast-moving of Magnetic Pole.

Options

• I, II, III, IV 

• I, II, III 

• I, II

• III. IV

Answer 1

I, II, III

Explanation:

It is believed that the electric currents circulating from the earth’s core to space give rise to the earth’s magnetic field. It is found in the research that the magnetic North Pole is skittering away from Canada,  towards Siberia. This magnetic field saves the earth from the solar wind that could cause the ozone layer of the earth to strip away. The SI unit of the earth’s magnetic field is Tesla. The Earth’s magnetic field effect to GPS signal is normally neglected since it has very minimal effect.