Q. The stability of arc in vacuum depends on _________. (Solved)
1. The contact material only.
2. The circuit parameters only.
3. The contact materials and its vapour pressure.
4. Both (b) and (c)
- d. Both (b) and (c)
1. The contact material only.
2. The circuit parameters only.
3. The contact materials and its vapour pressure.
4. Both (b) and (c)