For large-scale power distribution, why is alternating current (AC) preferred over direct current (DC)?
Understand the Problem
The question asks why AC is preferred over DC for large-scale power distribution. It presents four possible reasons, and we need to identify the correct one. The key concepts here are alternating current (AC), direct current (DC), power distribution, and the technologies associated with each (e.g., transformers, switchgear).
Answer
AC is more efficient for long-distance transmission and easily converted to different voltages.
AC is preferred over DC for large-scale power distribution because it is more efficient for transmitting power over long distances and can be easily converted to different voltages using transformers, reducing energy loss.
Answer for screen readers
AC is preferred over DC for large-scale power distribution because it is more efficient for transmitting power over long distances and can be easily converted to different voltages using transformers, reducing energy loss.
More Information
The ability to use transformers to efficiently step-up and step-down AC voltages is a key reason for its dominance in power distribution.
Tips
A common mistake is thinking DC is not used at all. DC is used in some long-distance, high-voltage power transmission systems, but AC is far more prevalent.
Sources
- Why do we use alternating current (AC) electricity? - JP Electric & Communications, Inc. - jpelectric.com
- Why is AC current preferred for large-scale electrical applications ... - quora.com
- Alternating current - Energy Education - energyeducation.ca
AI-generated content may contain errors. Please verify critical information
