35.6. Cutoff Frequency Relationship

Try these first

1. 1.

   What is the cutoff frequency?

   Hint

   Think about where the output starts to change significantly.

2. 2.

   Define the term transfer function.

   Hint

   What helps you analyze circuits based on their inputs and outputs?

3. 3.

   What happens to gain at frequencies beyond the cutoff frequency?

   • It decreases
   • It increases
   • It remains constant

   Hint

   Think about the effect of frequency on gain.

4. 4.

   True or False: The cutoff frequency is where the output power starts to be significantly attenuated.

   • True
   • False

   Hint

   Recall the definition of cutoff frequency.

5. 5.

   A circuit has a resistance of 1kΩ and a capacitance of 1µF. Calculate the cutoff frequency.

   Hint

   Use the formula for cutoff frequency relating resistance and capacitance.

6. 6.

   How would you design an RC circuit to have a cutoff frequency of 500 Hz? Calculate the required capacitance given a resistor of 330Ω.

   Hint

   Substituting values of frequency and resistance will lead to the capacitance needed.