jCorona usually occurs when the electrostatic stress in air around the conductor exceeds?

Electrical Engineering Mcqs

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 value)/cm

Submitted By :Ali Uppal

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