37.1.5. Output Resistance and Capacitance

Try these first

1. 1.

   What do the C and R represent in C-R and R-C circuits?

   Hint

   Think about the fundamental elements of electronic circuits.

2. 2.

   In a common emitter amplifier, what role does the coupling capacitor play?

   Hint

   Consider how signals are processed through amplifiers.

3. 3.

   What denotes the output frequency response of an amplifier?

   • Capacitive elements
   • Resistive elements
   • Both capacitive and resistive elements

   Hint

   Think about which components influence signal amplification.

4. 4.

   True or False: The lower cutoff frequency in an R-C circuit is determined by the product of resistance and capacitance.

   • True
   • False

   Hint

   Recall the definitions of cutoff frequencies.

5. 5.

   Design a common source amplifier circuit, specifying the necessary values for resistors and capacitors to achieve a desired lower cutoff frequency of 1 kHz.

   Hint

   Use the cutoff frequency formula.

6. 6.

   Given a common emitter amplifier with main resistance R = 1.5kΩ and a capacitance C = 220nF, analyze how the output voltage will behave at frequencies significantly above the upper cutoff frequency.

   Hint

   Think about what happens to signals at extreme frequencies.