Basic Qualification · B-005 Basic electronics and theory · B-005-001-005
If you have a hand-held transceiver that puts out 500 milliwatts, how many watts would this be?
- A 0.5 watts
- B 5 watts
- C 50 watts
- D 0.05 watts
Correct answer: A — 0.5 watts. From the official ISED question bank, verified word for word.
Why
One watt equals one thousand milliwatts, so to change milliwatts into watts, you divide by one thousand. 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.