A basic capacitor is composed of: A. two conductors separated by a dielectric B. two dielectrics separated by a conductor C. two coils separated by a dielectric D. two coils separated by a conductor E. None of the above

The correct answer is: A. two conductors separated by a dielectric.

A capacitor is an electrical device that stores energy in an electric field. It is composed of two conductors separated by a dielectric. The conductors are usually plates of metal, and the dielectric is a material that does not conduct electricity. When a voltage is applied to the capacitor, an electric field is created between the plates. This electric field stores energy in the capacitor.

Option B is incorrect because the dielectric is not a conductor. Option C is incorrect because the coils are not conductors. Option D is incorrect because the coils are not separated by a dielectric. Option E is incorrect because the answer is A.