8.02 Lecture Notes - Lecture 1: Helmholtz Coil, Electric Dipole Moment, Net Force
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A dipole pointing along the positive x-direction and located above the two coils (z > 0) will feel both a force and a torque. A magnet has two poles, north (n) and south (s) Magnetic eld lines leave from n and end at s. When an electric dipole is cut, two monopoles (charges) are created. When a magnetic dipole is cut, two dipoles are created. The picture shows the eld lines outside a permanent magnet. If the wire is a uniform magnetic eld then. Place rectangular current loop in a uniform b eld. Describe the motion the loop makes: counterclockwise motion about the y-axis.
