A. maintain the arc
B. extinguish the arc
C. transmit large power
D. emit the ionizing electrons
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3 Comments
Please review the mcq
B is the correct answer.
https://studysite.org/Discuss/Question/in_a_circuit_breaker_the_basic_problemis_to-11220032.htm
79 no mcq http://www.electricalquizzes.com/circuit-breakers/circuit-breakers-mcqs-6