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Mineral from which the first magnet was ...

Mineral from which the first magnet was found is ______

A

Iron

B

Magnus

C

Magnetite

D

Magnesia

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • Magnetism was first found around ______

    A
    `500_(BCE)`
    B
    `600_(BCE)`
    C
    `700_(BCE)`
    D
    `800_(BCE)`
  • The mineral from which potassium permagnate is manufactured

    A
    pyrolusite, `MnO_(2)`
    B
    braunite, `Mn_(2)O_(3)`
    C
    hausmannite, `Mn_(3)O_(4)`
    D
    manganite, `Mn_(2). H_(2)O.`
  • Which is the mineral of iron ?

    A
    Dolomite
    B
    Limonite
    C
    Malachite
    D
    Willemite
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    (A) All minerals are ores (R ) Ores are minerals from which metal can be extracted convenitly and economically

    Assertion: All minerals are ore. Reason: Ores are minerals from which metal can be extracted conveniently and economically.

    Length of the bar magnet is aligned along the axis of a circular coil which is placed far away from the magnet. When magnet is moved along the axis of coil then looking from the side of the magnet, it is found that clockwise current flows through the coil. Which of the following is/are possible?