Basic Qualification · B-005 Basic electronics and theory · B-005-005-011
The total current in a parallel circuit is equal to the:
- A sum of the currents through all the parallel branches
- B source voltage divided by the value of one of the resistive elements
- C source voltage divided by the sum of the resistive elements
- D current in any one of the parallel branches
Correct answer: A — sum of the currents through all the parallel branches. From the official ISED question bank, verified word for word.
Why
In a parallel circuit, the main wire splits into several separate paths, so the total current flowing from the source must equal the combined flow through every single branch. 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.