Basic Qualification · B-005 Basic electronics and theory · B-005-012-004
What two components are required to form a tuned circuit?
- A Diode and transistor
- B Inductor and capacitor
- C Resistor and transistor
- D Capacitor and resistor
Correct answer: B — Inductor and capacitor. From the official ISED question bank, verified word for word.
Why
A tuned circuit needs an inductor, which stores energy in a magnetic field, and a capacitor, which stores energy in an electric field. The full explanation — and one for every question — is in Pro.
Practise this section
The theory: Ohm's law, power, series and parallel circuits, AC and DC, frequency and wavelength, decibels, and the metric prefixes the exam leans on.