In a 2-wire DC transmission line, the loop resistance is 80 Ω. Find the resistance of a single conductor.

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MPPGCL JE Electrical 28 April 2023 Shift 2 Official Paper
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  1. 160 Ω
  2. 120 Ω
  3. 40 Ω
  4. 80 Ω

Answer (Detailed Solution Below)

Option 3 : 40 Ω
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Detailed Solution

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Loop Resistance in a Two-Wire DC Transmission Line

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The given image represents a group of two conductors. This group of conductors forms a loop resistance in a single-phase two-wire DC line.

Loop Resistance = 2 × Resistance of one conductor

Calculation

Given, Loop Resistance = 80 Ω

80 = 2 × Resistance of one conductor

Resistance of one conductor = 40 Ω

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