Capacitance of Cylindrical Capacitor
A cylindrical capacitor is made by taking two cylinders with similar axis the length of the cylinders is l and the radius of the cylinder is, R1 and R2 where R1 is the radius of the inner cylinder and R2 is the radius of the outer cylinder.
Now the outer cylinder is Earthned and the inner cylinder is given the charge. The space between them is filled with air. The capacitance of the cylindrical capacitor so formed is,
C = (2πμoI) / log(R2/R1)
where,
I is the current given to the cylindrical conductor
R2 and R1 are outer and inner radii respectively
Capacitance
Capacitance is defined as the capacity of any material to store electric charge. The substance that stores the electric charge is called a capacitor, i.e. the ability of the capacitor to hold the electric charge is called capacitance. It is denoted with the symbol C and is defined as the ratio of the electric charge stored inside a capacitor by the voltage applied.
Thus, any material that has a tendency to store electric charge is called a capacitor and the ability of the material to hold electric charge is called the capacitance of the material. In this article, we will learn about capacitance, its formula, capacitor, and others in detail.