[{{ 184_notes:dipole_epoint.png?150|Electric field at a single point (Point P) due to a dipole}}]
[{{ 184_notes:dipole_epoint.png?150|Electric field at a single point (Point P) due to a dipole}}]
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[[184_notes:pc_efield|As you have learned]], the electric field from a single //positive charge// at any given point will point away from the charge, and the electric field at any given point from a //negative charge// will point toward the point charge. So what happens to the electric field when you have a positive charge next to a negative charge? The field at any point in space around the two charges will be given by a **net electric field**, which is the [[184_notes:math_review#vector_addition|vector addition]] of the electric field from the positive charge and the electric field from the negative charge.
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[[184_notes:pc_efield|As you have learned]], the electric field from a single //positive charge// at any given point will point //away// from the charge, and the electric field at any given point from a //negative charge// will point //toward// the point charge. So what happens to the electric field when you have a positive charge next to a negative charge? The field at any point in space around the two charges will be given by a **net electric field**, which is the [[184_notes:math_review#vector_addition|vector addition]] of the electric field from the positive charge and the electric field from the negative charge.
→Enet=→E++→E−
→Enet=→E++→E−
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==== Examples ====
==== Examples ====
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[[184_notes:examples:Week3_superposition_three_points|Superposition with Three Point Charges]]
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* [[184_notes:examples:Week3_superposition_three_points|Superposition with Three Point Charges]]
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* Video Example: Superposition with Three Point Charges
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[[184_notes:examples:Week3_plotting_potential|Plotting Potential for Multiple Charges]]
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* [[184_notes:examples:Week3_plotting_potential|Plotting Potential for Multiple Charges]]