Q.

The corona occurs in humid weather at a voltage 

  • AMuch less than that needed in fair weather
  • BMuch higher than that needed in fair weather
  • CEqual to that needed in fair weather
  • DNone of the above 
Correct Answer : (A)

Much less than that needed in fair weather

Hints :

The corona occurs in humid weather at a voltage  much less than that needed in fair weather.

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