Choose the correct statement.

  • A
    Electric lines of force are closed curves while magnetic lines are not.
  • B
    Magnetic lines of force are closed curves while electric lines are not.
  • C
    Both electric and magnetic lines of force are closed curves.
  • D
    Neither electric nor magnetic lines of force are closed curves.

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Similar Questions

$A$ short bar magnet has a magnetic moment of $0.48 \; J \; T^{-1}$. Give the direction and magnitude of the magnetic field produced by the magnet at a distance of $10 \; cm$ from the centre of the magnet on
$(a)$ the axis,
$(b)$ the equatorial lines (normal bisector) of the magnet.

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$A$ magnetized wire of magnetic moment $M$ and length $l$ is bent in the form of a semicircle of radius $r$. Then its new magnetic moment is:

$A$ magnet is placed in iron powder and then taken out,then maximum iron powder is at

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