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AP Physics 2
10.3 Electric Fields
10.2 Conservation of Electric Charge and the Process of Charging
10.1 Electric Charge and Electric Force
AdvancedMCQConceptual14.7k
A neutral conducting sphere suspended near a charged rod (left) and between parallel plates (right).
A neutral conducting sphere suspended near a charged rod (left) and between parallel plates (right).
A small, neutral conducting sphere suspended from an insulating thread is placed near a positively charged rod and experiences a net attractive force toward the rod. When the same sphere is instead suspended in the region between two large, oppositely charged parallel plates where the electric field is uniform, it polarizes but experiences zero net translational electrostatic force. Which of the following best explains why the neutral sphere experiences a net attractive force toward the charged rod but experiences zero net force in the uniform electric field?

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