Learning objective
D.3.1—Charge in electric fields
• Motion of a charged particle in a uniform electric field.
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D.3 Motion in electromagnetic fields
Review each learning objective in this topic, then open its concept explanation or question set.
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Learning objective
D.3.2—Charge in magnetic fields
• Motion of a charged particle in a uniform magnetic field.
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Learning objective
D.3.3—Crossed electric and magnetic fields
• Charged particles can move in perpendicular uniform electric and magnetic fields.
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Learning objective
D.3.4—Magnetic force on charge
• Magnetic force on moving charge: F=qvB sinθ.
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Learning objective
D.3.5—Force on current conductor
• Force on current-carrying conductor: F=BIL sinθ.
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Learning objective
D.3.6—Force between parallel wires
• Force per unit length between parallel wires: F/L=μ0I1I2/(2πr). • Parallel currents attract when currents flow in the same direction.
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