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26 November, 07:00

Which of the following is a probable source of Earth's magnetic field?

a) The earths tides

b) earths outer iron core

c) the sun

d) the moon

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Answers (2)
  1. 26 November, 08:35
    0
    b) earths outer iron core

    A coil of wire that is carrying a current and produces a magnetic field is called a solenoid. So the correct option is option "B", in regards to the question given. The term solenoid was first invented by the famous French physicist named Andre-Marie Ampere. In the terms of a physicist, it indicates a coil that has a far greater lenth than the diameter and is wrapped around a core made of metal to create a uniform magnetic field. If a compass is brought near the wire through which current is passing, it will indicate the direction in which the current is flowing.
  2. 26 November, 09:51
    0
    The answer is B

    It has small particles of iron witch iron is magnetic
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