Electrical Engineering XYZ MCQs
Capacitor dielectric is essentially:
- Insulator
- Conductor
- Resistor
Correct answer: 1. Insulator
Explanation: The dielectric in a capacitor is essentially an insulating material placed between the plates of the capacitor. Its primary function is to increase the capacitor’s ability to store electrical charge without conducting electricity. A dielectric material does not allow the flow of electric current; instead, it supports an electric field while reducing the electric field’s strength within the capacitor. This increases the capacitance, which is the ability of the capacitor to store an electrical charge. Conductors and resistors do not serve this purpose in a capacitor; conductors would allow current to pass through, bypassing the capacitive effect, and resistors impede current flow, altering the intended function of a capacitor.