Consider the following statements regarding corona:
1. It causes radio interference.
2. It attenuates lightning surges.
3. It causes power loss.
4. It is more prevalent in the middle conductor of a transmission line employing a flat conductor configuration.
Which of the above statements are correct?
1
1, 2 and 3 only
2
1, 2 and 4 only
3
1, 2, 3 and 4
4
3 and 4 only