Stability of arc in vacuum

Q.  The stability of arc in vacuum depends on _________.
- Published on 17 Nov 15

a. The contact material only.
b. The circuit parameters only.
c. The contact materials and its vapour pressure.
d. Both (b) and (c)
e. None of these

ANSWER: Both (b) and (c)


  • parvathi    -Posted on 21 Feb 20
    very use full

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