Magnetism And Matter

4 Questions
  1. 1
    Electrically charged particles from space travelling at speeds of several hundred km/sec can severely harm living beings if they reach the surface of the Earth. What prevents them from reaching the surface of the Earth?
    UPSC CSE I - 2012
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    Answer: A. The Earth's magnetic field diverts them towards its poles

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  2. 2

    Consider the following statements:

    1. The axis of the Earth's magnetic field is inclined at 23½° to the geographic axis of the Earth.
    2. The Earth's magnetic pole in the Northern Hemisphere is located on a peninsula in Northern Canada.
    3. The Earth's magnetic equator passes through Thumba in South India.

    Which of the statements given above is/are correct?

    UPSC CSE I - 2005
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    Answer: B. 2 and 3

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  3. 3

    Which one of the following is paramagnetic in nature?

    UPSC CSE I - 1997
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    Answer: C. Oxygen

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  4. 4

    Assertion (A): Transformer is useful for stepping up or stepping down voltages.
    Reason (R): Transformer is a device used in D.C. circuits. In the context of the above two statements, which one of the following is correct?

    UPSC CSE I - 1996
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    Answer: C. A is true but R is false

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