Corona & its characteristics

Q.  Which of the following statements are true related to corona?

1. It causes radio interference.
2. It attenuates lightning surges.
3. It causes power loss.
4. It amplifies switching surges.

The codes are:
- Published on 24 Nov 15

a. 1,2,4
b. 1,4
c. 1,2,3
d. 2,3

ANSWER: 1,2,3

Post your comment / Share knowledge

Enter the code shown above:
(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)