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Basic Electrical Engineering MCQs
The relative permittivity of air is equal to ____
49. The relative permittivity of air is equal to ____.
- 0
- -1
- 1
- infinity
Answer: C) 1
Explanation:
The relative permittivity of air is equal to, In other words, air has the same permittivity as open space (vacuum). The relative permittivity of the vacuum is also 1.