Q.

Ionization In a circuit breaker is facilitated by

  • AIncrease in field strength
  • BIncrease of mean free length
  • CHigh temperature of surrounding medium 
  • DAll of the above 
Correct Answer : (D)

All of the above 

Hints :

Ionization In a circuit breaker is facilitated by Increase in field strength, Increase of mean free length and High temperature of surrounding medium.

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