Basic Qualification · B-005 Basic electronics and theory · B-005-009-003
If two equal-value capacitors are connected in series, what is their total capacitance?
- A Half the value of either capacitor
- B Twice the value of one capacitor
- C The value of one capacitor times 4
- D The value of one capacitor divided by 4
Correct answer: A — Half the value of either capacitor. From the official ISED question bank, verified word for word.
Why
When two equal capacitors are connected in series, the total capacitance becomes half the value of either capacitor because the effective distance between the plates doubles, making it harder to store charge. 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.