Electrical Engineering XYZ MCQ on The dielectric used in variable capacitor is generally with explanation and video illustration of variable capacitors.
The dielectric used in variable capacitor is generally:
- Air
- Electrolyte
- Solid
- None of these
Correct answer: 1. Air
Variable Capacitors are the capacitors whose capacitance may be intentionally and repeatedly changed mechanically or electronically. The figure below displays a mechanical variable capacitor that has two parts, rotor and stator.
![](https://i0.wp.com/www.electricalengineering.xyz/wp-content/uploads/2023/12/variablecapconstruction.jpg?resize=460%2C438&ssl=1)
You can rotate the rotor in order to change output capacitance of capacitor.
The ElectricalEngineeringXYZ short below illustrates the working of variable capacitor: