Solved

JCorona Usually Occurs When the Electrostatic Stress in Air Around

Question 24

Multiple Choice

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

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