Red Seal Electrician Practice
AC theoryQuestion 974 of 1506

How does dielectric loss in a capacitor change as the frequency increases?

  1. It becomes less pronounced
  2. It stays the same
  3. It becomes more pronounced
  4. It changes into a magnetic loss
Show answer

Correct answer: It becomes more pronounced

Dielectric heating in a changing field gets stronger at higher frequencies.

Source: Lessons in Electric Circuits II: AC (Kuphaldt), 4.5: Capacitor Quirks

Practice ac theory

Questions last reviewed: 18 October 2026