Self Test on Tutorial 13 A

Back

  1. What is a passive filter?

  2. What is an active filter?

  3. Work out the reactance of the capacitor of capacitance 3.8 mF at a frequency of 1500 Hz.  State your answer to an appropriate number of significant figures.

  4. Calculate the current if the voltage is 16 V.

  5. Reactance and resistance is measured in ohms.  What is the definition for both?  Why are they not the same?

  6. What is meant by the break frequency?

  7. Sketch a frequency response graph for a passive treble cut filter.

Answers