Question 466Electricity & Electronics - Assistant Engineer

The correct answer is A) regulated DC power supply. This circuit represents a regulated DC power supply, which is a device that converts alternating current (AC) power from the electrical grid into direct current (DC) power with a stable voltage output. The key features that indicate this is a regulated DC power supply are the transformer, rectifier, and voltage regulation components shown in the illustration. The other answer choices are incorrect because: B) a Wheatstone bridge is used to measure resistance, C) a waveform analyzer is used to display and analyze electrical waveforms, and D) a magnetic amplifier is a type of analog signal amplifier, none of which match the components and function depicted in the given illustration.