magnetism

Related Questions

• The time period of a freely suspended magnet is 2 sec. If it is broken in length into two equal parts and one part is suspended in the same way, then its time period will be

  ---

• If a hole is made at the centre of a bar magnet, then its magnetic moment will

  ---

• A bar magnet of length 10 cm and having the pole strength equal to $10^{–3}$ weber is kept in a magnetic field having magnetic induction (B) equal to $4\pi \times {10^{ - 3}}$ Tesla. It makes an angle of $30^o$ with the direction of magnetic induction. The value of the torque acting on the magnet is (${\mu _0} = 4\pi \times {10^{ - 7}}weber/amp \times m$)

  ---

• Which of the following statement is not the true

  ---

• The error in measuring the current with a tangent galvanometer is minimum when the deflection is about

  ---