jCorona usually occurs when the electrostatic stress in air around the conductor exceeds
A) 6.6 kV (r.m.s. value) /cm
B) 11 kV (r.m.s. value) /cm
C) 22 kV (maximum value) /cm
D) 30 kV (maximum v^lue) /cm
Correct Answer:
Verified
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