Advanced Qualification · A-001 Advanced theory · A-001-002-006
What unit measures the ability of a capacitor to store electrical charge?
- A Farad
- B Coulomb
- C Watt
- D Volt
Correct answer: A — Farad. From the official ISED question bank, verified word for word.
Why
The Farad is the unit that measures a capacitor's ability to store electrical charge, much like how a bucket's size determines how much water it can hold. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced theory: time constants, reactance, impedance, resonance, Q, and the mathematics behind tuned circuits.