Dielectric strength of mica is___________?
Correct answer: C. 50 to 200 kV/mm
- A. 10 to 20 kV/mm
- B. 30 to 50 kV/mm
- C. 50 to 200 kV/mm
- D. 300 to 500 kV/mmElectricity
Explanation
Mica is valued as an insulating dielectric because it has high dielectric strength, commonly about 50 to 200 kV/mm. The other ranges are either too low or unrealistically high for ordinary mica.
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