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) 0.25 (b) 0.50 (c) 0.75 (d) 1.0
Answer
Answer : (d)
Explanation
Explanation : No answer description available for this question. Let us discuss.
555555555519. In the input RC circuit of a single-stage BJT, by how much does the base voltage lead the input voltage at the cutoff frequency in the low-frequency region? (a) About 0º (b) 45º (c) About 90º (d) None of the above
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
555555555522. What is the ratio of the output power to the input power at the cutoff frequencies in a normalized frequency response plot? (a) 0.25 (b) 0.50 (c) 0.707 (d) 1
555555555555. In the input RC circuit of a single-stage BJT or FET amplifier, as the frequency ________, the capacitive reactance ________ and ________ of the input voltage appears across the output terminals. (a) increases, decreases, more (b) increases, decreases, less (c) increases, increases, more (d) decreases, decreases, less