Electrical Engineering · Transmission and Distribution
The amount of copper used by a 3-wire DC distributor having the same maximum voltage to earth as compared to a 2-wire DC distributor (assuming the neutral wire is half the cross-section of the outer wire) is ______.
- 131.25%✓
- 266.7%
- 369.75%
- 433.3%
Correct answer
31.25%
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