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Magnetic moment of two bar magnets may b...

Magnetic moment of two bar magnets may be compared with the help of

A

Deflection magnetometer

B

Vibration magnetometer

C

Both of the above

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Theory based
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Knowledge Check

  • The magnetic field lines around a bar magnet can be traced with the help of

    A
    iron filings
    B
    tracing compass
    C
    both (a) and (b)
    D
    none of the above.

  • Assertion (A): Magnetic moment of a bar magnet decreases with length. Reason (R): Magnetic strength decreases as magnetic moment decreases.

    A
    Both (A) and (R) are true and (R) is the correct explanation of (A).
    B
    Both (A) and (R) are true but (R) is not the correct explanation of (A).
    C
    (A) is true but (R) is false.
    D
    (A) is false and (R) is also false.

  • Magnetic moment of bar magnet is M. The work done to turn the magnet by 90^@ of magnet in direction of magnetic field B will be

    A
    Zero
    B
    `1/2 ` MB
    C
    `2` MB
    D
    MB

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