Question

Mica capacitors typically have capacitance values ranging from a few picofarads to about 0.2 µF. Additionally, their voltage values can vary between 100 volts and several thousand volts. What is a notable characteristic of mica capacitors regarding their stability in relation to temperature changes?

Option 1: Mica capacitors are highly unstable, and their capacitance values fluctuate significantly with temperature variations.
Option 2: Mica capacitors exhibit moderate stability, with slight changes in capacitance as temperatures rise or fall.
Option 3: Mica capacitors have extreme stability, and their capacitance values remain nearly constant even when subjected to temperature changes.
Option 4: Mica capacitors' stability with respect to temperature is unpredictable and varies significantly between different units.

Answer 1

Mica capacitors have extreme stability, and their capacitance values remain nearly constant even when subjected to temperature changes.

Step-by-step explanation:

Mica capacitors have extreme stability, and their capacitance values remain nearly constant even when subjected to temperature changes. Unlike some other types of capacitors that are sensitive to temperature variations, mica capacitors are known for their excellent temperature stability. This is because mica, the dielectric material used in these capacitors, has a very low temperature coefficient of capacitance.