The igneous rocks which were deposited on the surface and then cooled are known as __________.
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The capacitance of a pair of a circular plates is(C) =8.90× 10⁻¹¹ F
<h3 /><h3>How can we calculate the value of capacitance?</h3>To calculate the value of the capacitance of a pair of a circular plates we are using the formula,
C= K
Here we are given,
K= Dielectric constant of mica.
=6.
A= the area of the circular plates.
= r²
(Note: r is the radius of the circular plates
= 4.0 cm
= 0.04 m)
= × (0.04)²
= permittivity of the vacuum
= 8.854×10⁻¹² F⋅m⁻¹
d= Separating distance of the plates
= 3.0 mm
= 0.003 m
now we put the known values in the above equation, we get
C= K
Or, C=
Or, C= 8.90× 10⁻¹¹ F
From the above calculation we can conclude that, The capacitance of a pair of a circular plates is(C) =8.90× 10⁻¹¹ F
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