46. The ________ in the Fourier series has the same frequency as the square wave itself.
(a) fundamental
(b) third harmonic
(c) fifth harmonic
(d) seventh harmonic
47. In the low-frequency region, the ________ low-frequency cutoff determined by CS, CC, or CE will have the greatest impact on the network.
(a) highest
(b) average
(c) lowest
(d) None of the above
48. A change in frequency by a factor of 10 results in a ________ change in the ratio of the normalized gain.
(a) 3-dB
(b) 6-dB
(c) 10-dB
(d) 20-dB
49. With a BJT amplifier in the high-frequency region, the capacitance Cbe is the ________ of the parasitic capacitances while Cce is the ________.
(a) smallest, largest
(b) largest, smallest
(c) smallest, medium
(d) None of the above
50. The ________ of the upper cutoff frequencies defines a ________ possible bandwidth for a system.
(a) highest, maximum
(b) lowest, maximum
(c) lowest, minimum
(d) None of the above
Related Posts
555555555520. An amplifier rated at 30-W output is connected to a 5- speaker. Calculate the input power required for full power output if the power gain is 20 dB. (a) 3 mW (b) 30 mW (c) 300 mW (d) 3 W- 555555555525. An amplifier rated at 30-W output is connected to a 5- speaker. Calculate the input voltage for the rated output if the amplifier voltage gain is 20 dB. (a) 1.225 mV (b) 12.25 mV (c) 122.5 mV (d) 1.225 V
- 555555555526. An amplifier has an input signal voltage of 0.054 mV. The output voltage is 12.5 V. The voltage gain in dB is (a) 53.6 dB. (b) 107.3 dB. (c) 231 dB. (d) 116 dB.
- 555555555518. In the input RC circuit of a single-stage BJT, by how much does the base voltage lead the input voltage for frequencies much larger than the cutoff frequency in the low-frequency region? (a) About 0º (b) 45º (c) About 90º (d) None of the above
- 555555555541. The input power to a device is 10,000 W at 1000 V. The output power is 500 W, and the output impedance is 100 . Find the voltage gain in decibels. (a) –30.01 dB (b) –20.0 dB (c) –13.01 dB (d) –3.01 dB