At what condition does the corona start, if Es is the electrical stress and Ecr is the critical voltage?
A. Es > Ecr
B. Es = Ecr
C. Es < Ecr
D. Es << Ecr
Answer:A
At what condition does the corona start, if Es is the electrical stress and Ecr is the critical voltage?
A. Es > Ecr B. Es = Ecr C. Es < Ecr D. Es << Ecr