A uniform electric field of magnitude 640 N/C exists between two parallel plates that are 4.00 cm apart. A proton is released from rest at the positive plate at the same instant an electron is released from rest at the negative plate. Determine the distance from the positive plate at which the two pass each other.

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Coleen AmadoLv10

24 Dec 2020

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A uniform electric field exists in the region between two oppositely charged parallel plates 1.59 cm apart. A proton is released from rest at the surface of the positively charged plate and strikes the surface of the opposite plate in a time interval 1.55×10⁻⁶ s .

Part A

Find the magnitude of the electric field.

Use 1.60×10⁻¹⁹ C for the magnitude of the charge on an electron and 1.67×10⁻²⁷ kg for the mass of a proton.

Part B

Find the speed of the proton at the moment it strikes the negatively charged plate.

cyanhippopotamus115

Two parallel plates having charges of equal magnitude but opposite sign are separated by 12.0 cm. Each plate has a surface charge density of 36.0 nC/m^2. A proton is released from rest at the positive plate. Determine-

(a) Determine the magnitude of the electric field between the plates from the charge density.

(b) Determine the potential difference between the plates.

(d) Determine the speed of the proton just before it strikes the negative plate.

(e) Determine the acceleration of the proton towards the negative plate.

(f) Determine the force on the proton towards the negative plate.

(g) From the force, find the magnitude of the electric field.