What is a Fixed Capacitor?

Hint: The hint to the above question lies in the word that is prefixed to the capacitor. Such capacitors have one of the measuring quantities which are held constant. The required value of the capacitance in such capacitors is achieved by varying the dielectric of the capacitor. Hence keeping the above key points in mind we can define a fixed capacitor

Complete step-by-step solution:
A capacitor is an electronic device which stores energy in its electric field. It stores charge on its surface when a potential difference is applied across its ends. It is usually measured in terms of farads or microfarads.
A fixed capacitor is constructed in such a manner such that it possesses a fixed value of capacitance which cannot be adjusted. Hence it helps to maintain a constant charge and energy output. There are various types of fixed capacitors that can be described or grouped according to the dielectric materials that they are made of.
Hence from the above information we can conclude that capacitors having a constant value or fixed value of capacitance thereby maintaining constant charge and energy output are called fixed capacitors.

Note:Variable capacitors are characterized by the fact that their value of capacitance can be adjusted or varied. Fixed capacitors have a wide range of applications. They are most often found in timing circuits. They are also used to supply a continuous flow of level current. This helps to avoid spikes and surges that might occur in the power supply of an electrical circuit.