A positive test charge of 5.5 10-4 C is near a point charge that exerts a force of 2.3 10-4 N on it. The test charge is moved to a distance three times as far from the charge. What is the magnitude of the force that the field exerts on the test charge now?
A positive test charge of 5.5 10-4 C is near a point charge that exerts a force of 2.3 10-4 N on it.?
Since force is proportional to the inverse square of the separating distance, the new force should be 1/9th that of the original force.
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