Basic Qualification · B-005 Basic electronics and theory · B-005-005-003
Several resistors of various values are connected in parallel. How does the total resistance of the combination compare to the individual resistors?
- A It is greater than the largest resistor
- B It equals the average of the resistors
- C It equals the square root of the sum the resistors
- D It is less than the smallest resistor
Correct answer: D — It is less than the smallest resistor. From the official ISED question bank, verified word for word.
Why
When resistors are connected in parallel, you are adding extra paths for the electric current to flow, which makes it easier for the current to pass through the entire group. 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.