The insulation in a capacitor is called?

The insulation in a capacitor is called?

• A. Dielectric
• B. Insulation
• C. Conductor
• D. Semiconductive layer

Answer: (A)

The material between the plates of a capacitor is a dielectric. This dielectric acts as an electrical insulator, preventing current from flowing directly from one plate to the other, while its ability to become polarized in the electric field allows the capacitor to store energy. Using a dielectric between the plates also increases the capacitance (as determined by the dielectric constant of the material), compared to having just air between the plates. The other terms describe insulation in a general sense or refer to conductive or semi-conductive materials, but they don’t capture the specific role of the insulating, energy-storing layer inside a capacitor.

The material between the plates of a capacitor is a dielectric. This dielectric acts as an electrical insulator, preventing current from flowing directly from one plate to the other, while its ability to become polarized in the electric field allows the capacitor to store energy. Using a dielectric between the plates also increases the capacitance (as determined by the dielectric constant of the material), compared to having just air between the plates. The other terms describe insulation in a general sense or refer to conductive or semi-conductive materials, but they don’t capture the specific role of the insulating, energy-storing layer inside a capacitor.