An electron is projected with an initial speed v0 = 1.10106m/s into the uniform field between the parallel plates in the figure . assume that the field between the plates is uniform and directed vertically downward, and that the field outside the plates is zero. the electron enters the field at a point midway between the plates.

(a)if the electron just misses the upper plate as it emerges from the field, find the magnitude of the electric field.

(b) suppose that in the figure, the electron is replaced by a proton with the same initial speed. would the proton hit one of the plates?

(c) what would be the direction of proton's displacement? upward or downward?

(d) compare the paths traveled by the electron and the proton and explain the differences.

a=d/t

a="triangle"v/t

explanation:

a = acceleration

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia