Question

The Insulation Resistance of a 3 km long cable is \(200 \, \text{M}\Omega\). For length of \(15 \, \text{km}\), the Insulation Resistance will be :

• A. \(40 \, \text{M}\Omega\)
• B. \(200 \, \text{M}\Omega\)
• C. \(1000 \, \text{M}\Omega\)
• D. \(50 \, \text{M}\Omega\)

Hint:

For underground cables: \[ R \propto \frac{1}{L} \] Longer cable length means lower insulation resistance.

Answer 1

The Correct Option is A