Computer Programming MCQs Electrical Engineering Mcqs
Q jCorona usually occurs when the electrostatic stress in air around the conductor exceeds?
  • A A. 6.6 kv (r.m.s. value)/cm
  • B B. 11 kv (r.m.s. value)/cm
  • C C. 22 kv (maximum value)/cm
  • D D. 30 kv (maximum value)/cm
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