Question

A liny charged peliet of mass m is suspandod at rest by the clectric field between twa honzontal charged meulli plates. The lower plave has a positive oharge and the uppor plate hes a negative charge Wlach statenie in the following amswers is NOT tve? w The elestrie field botwoyn the plates points verbeally ss The pellet is negatively charged es The magnitude of the electric foree on the pellet is equal to mg. o If the magnitude of charge on both plates is increased, the pellet begins to move upward

Answer 1

Solution: The pellet is negatively charged

Explanation: As the upper plate has a negative charge and lower plate has a positive charge when pellet of mass m is suspended at rest by the electric field thus indicates that the electric field between the plates points vertically upward; electric force magnitude on the pellet is equal to mg; and when magnitude of charge on the plates is increased, the pellet will start moving upward. The pellet is not negatively charged