A pair of opposite charged parallel plates is placed in a lab so that the negati

Question

A pair of opposite charged parallel plates is placed in a lab so that the negative plate is directly above the positive plate. The electric field between them is uniform and has magnitude E. In this problem we consider the electric and gravitational forces on a particle of charge q and mass m. Acceleration due to gravity is denoted by g. Does the electric field point down (direction of + plate) or up (direction of - plate)? If the particle is stationary (not moving), is the partide positive or negative? Write an algebraic expression for the electric force on the particle in terms of E and q F_etec = Write an algebraic expression for the gravitational force on the particle m terms of m and g F_grav = Hence, write an algebraic expression for the electric field E in terms of q, m, g E = If the particle has m = 0.1 kg. q = 3 nC and if g = 10 m/s^2, what is the numerical value of the electric field? Give your answer with appropriate units. If the particle had instead mass 2m. but all the other parameters remain the same, what is the magnitude and direction of the acceleration? If the particle had instead charge 2q. but all the other parameters remain the same, what is the magnitude and direction of the acceleration?

Explanation / Answer

a)up

2)neither it is neutral.

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