220-801 · Question #829
Which of the following characteristics must be matched depending on the specifications of the power grid for the country a PSU will be utilized in?
The correct answer is D. Voltage. Different countries use different voltage standards for their electrical grids - for example, North America uses approximately 110–120V AC, while most of Europe and Asia use 220–240V AC. A power supply unit (PSU) must match (or be switched to match) the local grid voltage, or…
Question
Which of the following characteristics must be matched depending on the specifications of the power grid for the country a PSU will be utilized in?
Options
- AWattage
- BAmperage
- CResistance
- DVoltage
How the community answered
(50 responses)- A2% (1)
- B4% (2)
- C2% (1)
- D92% (46)
Explanation
Different countries use different voltage standards for their electrical grids - for example, North America uses approximately 110–120V AC, while most of Europe and Asia use 220–240V AC. A power supply unit (PSU) must match (or be switched to match) the local grid voltage, or it may fail or be permanently damaged. Many modern PSUs are dual-voltage or auto-switching. Wattage and amperage are output characteristics of the PSU itself, and resistance is not a configurable power grid specification.
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