Question

Calculate the electrical capacitance of earth the radius of earth is 6400 km

Answer 1

q=CV

C=q/V
C=4π€°r
=6400×10^3÷9×10^9
=711×10^-6 F

Answer 2

Answer:

Concept:

The ratio of the quantity of electrical charges stored on a conductor to the change in electric potential is known as capacitance. Self capacitance and mutual capacitor are two concepts in capacitance that are closely related. [1]: 237–238 Self capacitance is a property of any thing that may be electrically charged. In this case, the electrostatic current difference between both the object and the ground is measured. A substance with a large self capacitance sustains more electric charge at a given potential difference than one with an eliminated or reduced. Understanding the behaviour of the capacitor, one of the three basic linear electronic components, requires an understanding of mutual capacitance (along with resistors and inductors).

Given:

Calculate the earth's electrical capacitance. The earth's radius is 6400 kilometres.

Find:

determine the earth's electrical capacitance

Answer:

=> A capacitor is a device that stores electrical energy in an electric field. It's a two-terminal passive electrical component. The operation of a capacitor is referred to as "capacitance."

capacitance $C=\frac{Q}{V}$

$Q = charge$

$V = potential$  $difference$

$V=\frac{KQ}{R}$

$C=4\pi E_{0} R$

$given,$

$radius = 6400 km$

           $= 6.4 * 10^6 m$

The capacitance of earth is

$C=4\pi E_{0} R$

   $=4\pi *8.854*10^{-12} *6.4*10^{6} m$

   $= 711$ µ$F$

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