railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Power Systems Transmission and Distribution Underground Cables
The insulation resistance of a cable of length 5 km is 1 M ohm. For a length of 50 km of the same cable, the insulation resistance will be:
1
1 ohm
2
0.1 M ohm
3
1 k ohm
4
1 M ohm