Question

1. which type of dielectric is not used in capacitors?

a electrolyte
b ceramic
c film
d copper

Explanation:

Capacitors use dielectric materials to increase capacitance. Electrolyte (in electrolytic capacitors), ceramic (in ceramic capacitors), and film (in film capacitors) are common dielectrics. Copper is a conductor, not a dielectric.

Answer:

D. copper