A wire of length I has a magnetic moment M. It is then bent into a semi-circular arc. The neyv magnetic moment is :

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A wire of length I has a magnetic moment M. It is then bent into a semi-circular arc. The neyv magnetic moment is :

1.M

2.M.l.

3.2M/Ï€

4.M/Ï€

Posted Date:-2021-12-16 12:51:27

More MCQS Questions and answers

  1. A current carrying power line carries current from west to east. What will be direction of magnetic field 1 meter above it?
  2. A magnetic dipole moment is a vector quantity directed from:
  3. A wire of length I has a magnetic moment M. It is then bent into a semi-circular arc. The neyv magnetic moment is :
  4. Ferrites may be:
  5. In a bar magnet, magnetic lines of force z :
  6. In a moving coil galvanometer, we use a radial magnetic field so that the galvanometer scale is :
  7. On quadrupling the moment of inertia of a magnet, its frequency of oscillation will become:
  8. S.I. unit of flux is :
  9. Tangent law is applicable only when:
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  11. The dimensional representation of magnetic flux density is :
  12. The force between two parallel wire 2 × 10-7 Nm-1, placed 1 m apart to each other in vacuum. The electric current flowing through the wires is:
  13. The magnetic field at the centre of a current carrying circular loop is B. If the radius of the loop is doubled keeping the current unchanged, the magnetic field at the centre of loop will become:
  14. The magnetic field of earth is due to:
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  16. The magnetic lines of force inside a bar magnet:
  17. The Mariner’s compass is provided with Gimbals arrangement so as to :
  18. The neutral point in the magnetic field of a horizontally placed bar magnet is a point where the magnetic field due to that bar magnet is:
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