Basic Qualification · B-005 Basic electronics and theory · B-005-005-008
If ten resistors of equal value "R" are wired in parallel, what formula yields the total resistance?
- AR / 10
- B10 / R
- C10 x R
- D10 + R
Correct answer: A — R / 10. From the official ISED question bank, verified word for word.
Why
When ten identical resistors are connected in parallel, the electricity has ten separate paths to flow through, making it much easier for current to pass than through a single resistor. The full explanation — and one for every question — is in Pro.
Practise this section
Basic electronics and theory is section B-005 of the Basic exam: 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.
Drill B-005 — free, no account