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Electronic Devices - BJT and FET Frequency Response


Exercise

"I never think of the future. It comes soon enough."
- Albert Einstein
1. 

A change in frequency by a factor of ________ is equivalent to 1 octave.

A. 2B. 10
C. 5D. 20

2. 

What is the ratio of the capacitive reactance XCS to the input resistance RI of the input RC circuit of a single-stage BJT amplifier at the low-frequency cutoff?

A. 0.25B. 0.50
C. 0.75D. 1.0

3. 

Refer to Figure 9.19. Calculate at 0.5f1.

A. 63.43ºB. 26.56º
C. 45ºD. undefined

4. 

For which of the following frequency region(s) can the coupling and bypass capacitors no longer be replaced by the short-circuit approximation?

A. Low-frequency
B. Mid-frequency
C. High-frequency
D. All of the above

5. 

Determine the lower cutoff frequency of this network.

A. 15.8 Hz
B. 46.13 Hz
C. 238.73 Hz
D. 1575.8 Hz




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