जॉइन Examsbook
The Potassium graphite and Calcium Graphite can be mostly used as which among the following?5
प्र: The Potassium graphite and Calcium Graphite can be mostly used as which among the following?
- 1Moderatorsfalse
- 2Semiconductorsfalse
- 3Superconductorstrue
- 4Lubricantsfalse
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