The plates of a parallel-plate capacitor are made of circular discs of radii 5.0 cm each. If the separation between the plates is 1.0 mm, what is the capacitance?
Parallel plate capacitor: When two conducting plates are connected in parallel and separated by some distance then parallel plate capacitor will be formed.
Given:
Radius r= 5cm
Separation between the plates is
Formula used:
Capacitance is given by the formula
Where,
C is the capacitance of the capacitor
εₒ is the permittivity of free space =
A is the area of the circle m2
Because capacitor plates are made of circular discs)
d is the separation between the plates
Putting the values in the above relation, we get
Capacitance is of a circular disc parallel plate capacitor