What is a fixed capacitor?

A fixed capacitor is a capacitor with a fixed capacitance that does not vary with the applied voltage. It stores electric charge. It consists of two

What are the two types of capacitors?

The two main types of capacitors are fixed capacitors and variable capacitors. As the name suggests, the fixed capacitor has a fixed capacitance value. It cannot be changed. Fixed capacitors are further divided into two types i.e. 1. 1. Polar Capacitors 1. 2. Non-polar Capacitors

How can capacitors be classified based on their fixed or variable capacitance?

Capacitors can be classified depending upon their fixed or variable capacitance as follows − Those capacitors whose value of capacitance is fixed during the manufacturing and cannot be changed later are known as fixed capacitors. The symbol of the fixed capacitor is shown in figure. The fixed capacitors are classified into two categories as −

What are the simplest air capacitors?

The simplest air capacitors are the ones with conducting plates having air in between. This construction is exactly the same as the variable tuning capacitor discussed above. These capacitors can be fixed and variable also but fixed are very rarely used as there are others with superior characteristics.

Are fixed capacitors polarized or non-polarized?

The main classification of fixed capacitors is done as polarized and non-polarized. Let us have a look at Non-polarized capacitors. These are the capacitors that have no specific polarities, which means that they can be connected in a circuit, either way without bothering about the placement of right lead and left lead.

What is a variable capacitor?

They have the similar construction as film capacitor. The layers are wound together to attain a larger size and capable of handling high power. They are used in high power AC and DC applications. Such types of capacitors whose capacitance can be changed either mechanically or electrically is known as the variable capacitors.