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Unformatted text preview: electric eld (i.e. in the same direction as the eld if the charge is +, and in the opposite direction if the charge is -). The force on a moving charged particle due to a magnetic eld is perpendicular to both the magnetic eld and to the particles velocity. Remember, a charged particle must be moving in order to feel a force due to a magnetic eld. 25. If a piece of iron is placed in a current carrying coil, the magnetic eld strength will be greatly increased inside the coil. The eld due to the coil puts the spins in the iron into alignment. The newly aligned spins give rise to a magnetic eld which reinforces the original eld. 1...
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- Spring '08