A 1.4-µC point charge is placed between the plates of a parallel plate capacitor. The charge experiences a force of 0.59 N. What is the magnitude σ of the charge density on either plate of the capacitor?

Respuesta :

Answer:

[tex]\sigma=3.72\times 10^{-6}\ C/m^2[/tex]

Explanation:

Given that,

Charge, [tex]q=1.4\ \mu C=1.4\times 10^{-6}\ C[/tex]

Force experienced by the charge, F = 0.59 N

We need to find the magnitude of charge density on either plate of the capacitor. Electric field on parallel plate capacitor is given by :

[tex]E=\dfrac{\sigma}{\epsilon_o}[/tex]

[tex]E=\dfrac{F}{q}[/tex]

[tex]\dfrac{F}{q}=\dfrac{\sigma}{\epsilon_o}[/tex]

[tex]\sigma=\dfrac{F.\epsilon_o}{q}[/tex]

[tex]\sigma=\dfrac{0.59\times 8.85\times 10^{-12}}{1.4\times 10^{-6}}[/tex]

[tex]\sigma=3.72\times 10^{-6}\ C/m^2[/tex]

So, the charge density on either plate of the capacitor is [tex]3.72\times 10^{-6}\ C/m^2[/tex]. Hence, this the required solution.

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