For a electron  A Calculate the change in electric potential energy when the magnitude of the electric field is 250 N/C, the starting position is 2.4 m from the origin, and the final position is 3.9m from the origin. B) Determine the initial speed of the electron assuming its speed has decreased to half of its initial speed after the same displacement.

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.