Mathematics · Mensuration
For a standard concentric-stranded conductor used in overhead distribution lines, if there are 'n' layers of wires (including the central core as layer 1), what is the formula for the total number of single strands?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1n(n + 1) + 1
- 23(n + 1) + 1
- 33n(n + 1)
- 43n(n - 1) + 1✓
Correct answer
3n(n - 1) + 1
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