Multiple choice general knowledge

The increased electricity used by modern appliance parts is causing a shift in the Earth's magnetic field.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Human electricity consumption is negligible compared to natural sources of Earth's magnetic field. The geomagnetic field is generated by the geodynamo in Earth's outer core (convection of molten iron) and influenced by solar wind, cosmic rays, and ionospheric currents. All human electrical activity combined is orders of magnitude too small to affect planetary magnetic fields.

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