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Sagot :
Sure, let's solve the problem step by step.
### Given:
1. Separation distance between the plates: \( d = 8.08 \times 10^{-5} \, \text{m} \)
2. Charge on the plates: \( Q = 2.24 \times 10^{-9} \, \text{C} \)
3. Potential difference across the plates: \( V = 855 \, \text{V} \)
4. Permittivity of free space: \( \epsilon_0 = 8.854187817 \times 10^{-12} \, \text{F/m} \)
### Steps to solve for the area \( A \) of the plates:
1. Calculate the electric field (E) between the plates:
The electric field can be calculated from the potential difference and the separation distance using the formula:
[tex]\[ E = \frac{V}{d} \][/tex]
where
[tex]\[ V = 855 \, \text{V} \quad \text{and} \quad d = 8.08 \times 10^{-5} \, \text{m} \][/tex]
2. Calculate the electric field (E):
[tex]\[ E = \frac{855}{8.08 \times 10^{-5}} \, \text{V/m} \][/tex]
3. Relate the charge (Q) to the electric field (E) and the area (A):
Using the formula for the capacitive relationship involving the electric field and plate area,
[tex]\[ Q = \epsilon_0 \cdot A \cdot E \][/tex]
we can solve for \( A \):
[tex]\[ A = \frac{Q}{\epsilon_0 \cdot E} \][/tex]
where
[tex]\[ Q = 2.24 \times 10^{-9} \, \text{C} \quad \text{and} \quad \epsilon_0 = 8.854187817 \times 10^{-12} \, \text{F/m} \][/tex]
4. Using the electric field (E) from the previous step:
5. Plug the values into the equation for \( A \):
[tex]\[ A = \frac{2.24 \times 10^{-9}}{8.854187817 \times 10^{-12} \cdot \left(\frac{855}{8.08 \times 10^{-5}}\right)} \][/tex]
6. Simplify the expression to find the area.
### Final Calculation Result:
The area of the plates is approximately
[tex]\[ 2.3908070856726704 \times 10^{-5} \, \text{m}^2. \][/tex]
Thus, the answer is:
[tex]\[ 2.3908070856726704 \][/tex]
So the area of the plates is [tex]\( \boxed{2.3908070856726704} \cdot 10^{-5} \, \text{m}^2 \)[/tex].
### Given:
1. Separation distance between the plates: \( d = 8.08 \times 10^{-5} \, \text{m} \)
2. Charge on the plates: \( Q = 2.24 \times 10^{-9} \, \text{C} \)
3. Potential difference across the plates: \( V = 855 \, \text{V} \)
4. Permittivity of free space: \( \epsilon_0 = 8.854187817 \times 10^{-12} \, \text{F/m} \)
### Steps to solve for the area \( A \) of the plates:
1. Calculate the electric field (E) between the plates:
The electric field can be calculated from the potential difference and the separation distance using the formula:
[tex]\[ E = \frac{V}{d} \][/tex]
where
[tex]\[ V = 855 \, \text{V} \quad \text{and} \quad d = 8.08 \times 10^{-5} \, \text{m} \][/tex]
2. Calculate the electric field (E):
[tex]\[ E = \frac{855}{8.08 \times 10^{-5}} \, \text{V/m} \][/tex]
3. Relate the charge (Q) to the electric field (E) and the area (A):
Using the formula for the capacitive relationship involving the electric field and plate area,
[tex]\[ Q = \epsilon_0 \cdot A \cdot E \][/tex]
we can solve for \( A \):
[tex]\[ A = \frac{Q}{\epsilon_0 \cdot E} \][/tex]
where
[tex]\[ Q = 2.24 \times 10^{-9} \, \text{C} \quad \text{and} \quad \epsilon_0 = 8.854187817 \times 10^{-12} \, \text{F/m} \][/tex]
4. Using the electric field (E) from the previous step:
5. Plug the values into the equation for \( A \):
[tex]\[ A = \frac{2.24 \times 10^{-9}}{8.854187817 \times 10^{-12} \cdot \left(\frac{855}{8.08 \times 10^{-5}}\right)} \][/tex]
6. Simplify the expression to find the area.
### Final Calculation Result:
The area of the plates is approximately
[tex]\[ 2.3908070856726704 \times 10^{-5} \, \text{m}^2. \][/tex]
Thus, the answer is:
[tex]\[ 2.3908070856726704 \][/tex]
So the area of the plates is [tex]\( \boxed{2.3908070856726704} \cdot 10^{-5} \, \text{m}^2 \)[/tex].
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