Electrical Stress > Critical Voltage : Condition for Corona start

Q.  At what condition does the corona start, if Es is the electrical stress and Ecr is the critical voltage?
- Published on 30 Sep 15

a. Es > Ecr
b. Es = Ecr
c. Es < Ecr
d. Es << Ecr

ANSWER: Es > Ecr

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.)