A tiny charged pellet of mass m is suspended at rest by the electric field betwe

Question

A tiny charged pellet of mass m is suspended at rest by the electric field between two horizontal, charged metallic plates. the lower plate has a charge and the upper plate has a negative charge. Which statement in the answers below is NOT true.

a) The electric field between the plates points vertically upward.
b) The pellet is negatively charged.
c) The magnitude of the electric force on the pellet is equal to mg.
d) If the magnitude of charge on the plates increased, the pellet begins to move upward.

Please explain how you came to the right answer.

Explanation / Answer

a) The electric field between the plates points vertically upward is flase as given that field is acting horizontal direction

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