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MIT 6.002 Circuits and Electronics, Spring 2007 13 Online
OpenStudy (anonymous):

In a vacuum circuit breaker, the vacuum is of the order of (A) 10mm Hg (B)10-2mmHg (C) l0-6 mmHg (D)10-9mmHg.

OpenStudy (anonymous):

its D

OpenStudy (anonymous):

thnx

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