Monday, December 17, 2018

capacitor basic

Capacitor: A capacitor is a passive two terminal electronic component that stores electrical energy in an electric field.

E = k*Q/r^2
V = k*Q/r
& Q is directly proportional to V
Q = C*V
Q/V = C (capacitance is measured in Farad,F)

So,a capacitance is the charge required to increase the voltage of 1volt.
For Ex> If capacitance  of a material is 50 F it means that it needs 50 coulomb of charge to increase 1 volt.

Have you ever thought that how much charge can be given to a conductor??
> A conductor can store charge until the surrounding mediam  does not get ionised.

 V = k*Q/R &  C =Q/V
so C = k*R
from above equation  it's clear that  capacitance  depends on size of sphere.

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capacitor basic

Capacitor: A capacitor is a passive two terminal electronic component that stores electrical energy in an electric field . E = k*Q/r^2...