6. An amplifier has an Rin = 1.2 k. The coupling capacitor is 1 F. Determine the approximate lower cutoff frequency.
(a) 133 Hz
(b) 1.33 kHz
(c) 13.3 kHz
(d) 133 kHz
7. A two-times change in frequency is called a(n)
(a) binave.
(b) octave.
(c) decade.
(d) none of the above
8. The phase shift through the input of an RC circuit approaches ________° as the frequency approaches zero.
(a) 0
(b) 45
(c) 180
(d) 90
9. What is the method that can be used to determine the values of fcl and fcu of an amplifier?
(a) five time constants
(b) step-response
(c)
(d)
10. Halving the power corresponds to a ________ dB ________.
(a) 3, decrease
(b) 10, decrease
(c) 3, increase
(d) 10, increase
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