-
Distilled water at 25ºC is characterized by σ = 1.7 × 10–4 mho/m, ε = 78 ∈o at a frequency 3 GHz. Its loss tangent is—
-
- 1.345 × 10– 5 degree
- 1.345 × 10– 1 degree
- 1.345 × 10– 2 degree
- None of these
Correct Option: A
Loss tangent = tan θ = σ ω∈
| = | |
| 2π × 3 × 109 × 78 × 8.6 × 10–12 |
= 1.345 × 10–5 degree.
