Physics, 11.03.2020 21:40 mariahrmunoz01

Two parallel plates having charges of equal magnitude but opposite sign are separated by 11.0 cm. Each plate has a surface charge density of 49.0 nC/m2. A proton is released from rest at the positive plate. (a) Determine the magnitude of the electric field between the plates from the charge density.

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Answer from: jwbri

Two parallel plates having charges of equal magnitude but opposite sign are separated by 11.0 cm. Each plate has a surface charge density of 49.0 nC/m2. A proton is released from rest at the positive plate.

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

b) Determine the potential difference between the plates.

The Electric Field between the two plate is E = 5.536*10^3 N/C

The potential difference between the plate is V = $609 \ Volts$

Explanation:

From the we are given that

The separation between the plate is d = 11.0 cm

The surface charge density is $\sigma = 49.0 n C/m^2 = 49.0*10^{-9}$

Generally Electric field between the plate is mathematically given as

$E = \frac{\sigma }{\epsilon_0}$

Note that $\epsilon_0$ is the permitivity of free space and its value is $8.85 *10 ^{-12} C^2 /N \cdot m^2$

Now substituting values we have

$E = \frac{49*10^{-9}}{8.85*10^{-12}}$

5.537*10^3 N/C

Generally Potential difference between the plate is mathematically given as

V =Ed

Where E is the electric field which is E = 5.536*10^3 N/C

Substituting value we have

V = $= (5.537*10^3 N/C) (11.0*10^{-2}) =609 V$

Answer from: Quest

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Answer from: Quest

An atom (ours, not carroll's) consists of a positively charged nucleus, surrounded by one or more negatively charged particles called electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6 nm. * if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -

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