A small object is released in the center of the capacitor in the figure(Figure 1

Question

A small object is released in the center of the capacitor in the figure(Figure 1) . For each situation, does the object move to the right, to the left, or remain in place? If it moves, does it accelerate or move at constant speed?

Part A

A positive object is released from rest.

A. Moves at constant speed to the left.

B. Remains in place.

C. Accelerates to the left.

D. Accelerates to the right.

E. Moves at constant speed to the right.

Part B

A neutral but polarizable object is released from rest.

Part C

A negative object is released from rest.

A. Remains in place. B. Moves at constant speed to the right. C. Accelerates to the left. D. Moves at constant speed to the left. E. Accelerates to the right.

Explanation / Answer

a accelerates to the right the electric field point to the right so for a positive object the force will go the right.

b remains in place, as there are equal forces pulling on both directions.

b accelerated to the left the electric field point to the right so for a negative object the force will go the left.

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