Elevator Mechanic Practice Exam

What material can be used to help with voltage isolation on the AC input of a solid state drive?

1. Capacitors

2. Inductors

3. Resistors

4. Transformers

The correct answer is: Capacitors

The correct choice for helping with voltage isolation on the AC input of a solid-state drive is transformers. Transformers are designed to transfer electrical energy between two or more circuits through electromagnetic induction. They can effectively isolate different parts of a circuit by providing voltage transformation and limiting how much current can pass through, thus ensuring that variations in voltage do not affect the operation of the solid-state drive. This is particularly important in applications where voltage spikes or fluctuations could potentially damage sensitive components like those found in solid-state drives. While capacitors, inductors, and resistors play important roles in electrical circuits—such as filtering, managing current flow, and voltage division—they do not provide the same level of galvanic isolation as transformers do. Capacitors can block direct current but do not isolate voltage levels; inductors can help manage ripple and smooth out signals but do not isolate voltages; and resistors primarily focus on controlling current and voltage levels within a circuit without isolation benefits. Therefore, utilizing transformers is the most effective method for ensuring voltage isolation on the AC input of a solid-state drive.