1. Oersted discovered that a curernt carrying wire caused a magnet to move. Why does the magnet move?
2. Ampere discovered that a magnet caused a current carrying wire to move. Why does the wire move?
(i) ∫Edl = - dΦ_B/dt
(ii) ∫Bdl = Iμ_0 + μ_0ε_0(dΦ_E/dt)
(iii) F = qvxB
(iv) F = IBxL
The Attempt at a Solution
1. By eq. (i), a changing electric field will result in a change in magnetic flux i.e. will induce a magnetic field. This magnetic field will react with the magnetic field of the magnet, causing it to move.
2. By eq. (ii), a changing magnetic field will result in a change in electric flux i.e. will induce an electric field. This will react with the electric field of the current-carrying wire, causing it to move.
Do you think these answers are sufficient? Is there anything more to be said?