試題詳解

複選題
24. A magnetic dipole made of a conductive ring carrying a current I. Observ- ing from far away； which of the following statements are FALSE?
(A) If the magnetic dipole is placed in a uniform magnetic feld, it experiences no net magnetic force.
(B) The magnetic dipole experiences a net torque if its dipole moment is parallel to the uniform magnetic feld.
(C)The magnetic dipole may experience a net force induced by another magnetic dipole.
(D) The magnetic field induced by the magnetic dipole is approximately proportional to the area of the ring.
(E) The magnetic field induced by the dipole is approximately inversely proportional to the square of the distance from it.