PPE34_MovingChargesII - Magnetism Moving Charges II...

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© RHJansen Magnetism Magnetism Moving Charges II Moving Charges II
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Overlapping Electric and Magnetic Fields The Electric Field follows one set of rules. The Electric Field is directed from positive to negative. Electric Force parallel to the field. Positive charges move with the field, while negative charges move opposite the field. If the particle moves perpendicular to the electric field projectile motion results . The Magnetic Field follows another set of rules. The Magnetic Field, motion of the charge must be perpendicular. Magnetic Force is perpendicular to both the Magnetic Field and the charges path (velocity). The Right Hand Rule is used to determine the direction of force (left hand for negative). © RHJansen + + + + + + + F F E If the two fields generate equal and opposite force, then the particle will travel in a straight line. Put another way: If a particle is traveling in a straight line then the two fields must generate equal and opposite force.
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When an electric and magnetic field overlap the fields are not equal. The forces are equal in magnitude and opposite in direction. © RHJansen + + + + + + + F F E The direction is a bit more tricky. These are two distinctly different fields using distinctly
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PPE34_MovingChargesII - Magnetism Moving Charges II...

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