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What is meant by Solenoid ? How does a c...

What is meant by Solenoid ? How does a current carrying Solenoid behave ? Give its main use.

Text Solution

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A coil of many clrcular turns of insulated copper wire wrapped closely in the shape of a cylinder is called a Solenoid.
The field lines around a current-carrying solenoid is similar to that produced by a bar magnet This means that a current - carrying solenoid behaves as having north pole and south pole.
The strong magnetic field produced inside a solenoid can be used to magnetise a piece of magnetic material like soft iron when placed inside the coil.
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Knowledge Check

  • The magnetic field due to a current-carrying solenoid is independent of

    A
    its number of turns
    B
    its length
    C
    the current passing through it
    D
    all of the above

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