Q. The vacuum inside the glass bulb of a mercury arc rectifier is of the order of (Solved)
1. 5 x 10-3 cm of Hg
2. 5 x 10-4 cm of Hg
3. 5 x 10-5 cm of Hg
4. 5 x 10-8 cm of Hg.
- c. 5 x 10-5 cm of Hg
1. 5 x 10-3 cm of Hg
2. 5 x 10-4 cm of Hg
3. 5 x 10-5 cm of Hg
4. 5 x 10-8 cm of Hg.