For a mica capacitor used in measurement and RF work, the dielectric loss angle δ is typically closest to which value?

Introduction / Context:
The loss angle δ (and dissipation factor tan δ) describe dielectric losses in capacitors. Low-loss dielectrics are preferred for precision and RF applications to minimize heating and phase error. Mica is a classic low-loss dielectric widely used in high-stability circuits.

Given Data / Assumptions:

• Mica capacitors are low-loss with very small tan δ.
• We seek an order-of-magnitude choice for the loss angle in degrees.

Concept / Approach:
For a high-quality dielectric, tan δ is small (often 10^-3 to 10^-4 region for mica, depending on frequency and construction). A small tan δ corresponds to a small δ in radians and hence in degrees. Among the provided options, 1° best reflects a very small angle, whereas 5°, 15°, or 25° would imply unacceptably high loss for precision mica capacitors.

Step-by-Step Solution:

Verification / Alternative check:

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