its the last week of school and i need this for class today. Two square conducti

Question

its the last week of school and i need this for class today.
Two square conducting plates 20 cm on a side are separated by 3.5mm and have a charge of 4 microCoulombs. A positive charge of 3.2xl0^-19 C is at rest on the positive plate. It has a mass of 4.5 x10^-26kg.

a) What is the electric field strength between the plates and thepotential difference

between the plates?

b) With what velocity with the charge strike the negativeplate?

c) How much work is done on the charge by the electric field duringthe motion?

Explanation / Answer

E = /0       from Gauss'Law E = Q / (A0)       gives theelectric field V = E Q        thepotential energy of the proton (also the work done by thefield) 1/2 m v2 = E Q      solveto find v

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