Basic Qualification · B-005 Basic electronics and theory · B-005-002-008
What is the inverse of resistance?
- A Reactance
- B Reluctance
- C Permeability
- D Conductance
Correct answer: D — Conductance. From the official ISED question bank, verified word for word.
Why
Conductance measures how easily electricity flows through a material, making it the exact opposite of resistance, which measures how much a material blocks that flow. 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.