Questenaتمرینی که نشان می‌دهد بعد چه چیزی را مرور کنید
سؤال 441

Which of the following components can be used to reduce thermal drift in crystal oscillators?

  1. NP0 capacitorsپاسخ درست
  2. Toroidal inductors
  3. Wirewound resistors
  4. Non-inductive resistors

توضیح

NP0 (C0G) ceramic capacitors have a nominally zero temperature coefficient, so their capacitance barely changes as the circuit warms up. Using them in the frequency-determining network keeps thermal drift low; other dielectrics vary strongly with temperature.

ادامهٔ این آزمون

شروع تمرین