1. Two fixed charges -4.0 C and -5.0 C, are separated a certain distance. a) Is

Question

1. Two fixed charges -4.0 C and -5.0 C, are separated a certain distance. a) Is the net electric field at a location halfway between the two charges: 1) directed toward the -4.0uC charge, 2) Zero, 3) directed toward the -5.0uC charge

b) If the charges are separated by 20 cm, calculate the magnitude of the net electric field halfway between the two charges.

2. An electron is accelerated by a uniform electric field (1000 V/m) pointing vertically upward. Use energy methods to get the magnitude and direction of its velocity after it moves 0.10 cm form rest. Does the electron gain or lose potential energy?

Explanation / Answer

1) 3

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