In a series–parallel circuit, individual component power dissipation are calculated using_____________?
(A) individual component parameters
(B) a percent of the total power depending on resistor ratios
(C) total current squared multiplied by the resistor values
(D) a percent of the voltage division ratio squared
In a series–parallel circuit consisting of R1 and R2 in series and connected in parallel with R3, if R1 opens, then R2‘s voltage will:___________?
(A) increase
(B) remain the same
(C) decrease
(D) cannot tell
In a series resonant band-pass filter, a lower value of Q results in______________?
(A) a higher impedance
(B) a smaller bandwidth
(C) a higher resonant frequency
(D) a larger bandwidth
The maximum output voltage of a certain low-pass filter is 15 V. The output voltage at the critical frequency is_____________?
(A) 10.60 V
(B) 0 V
(C) 21.21 V
(D) 15 V
The same signal in Problem 2 is applied to an RC high-pass filter. If the reactance is zero at the input frequency, the output voltage is____________?
(A) 12.73 V peak-to-peak
(B) 18 V peak-to-peak
(C) 9 V peak-to-peak
(D) zero
A sinusoidal voltage with a peak-to-peak value of 18 V is applied to an RC low-pass filter. If the reactance at the input frequency is zero, the output voltage is____________?
(A) 18 V peak-to-peak
(B) zero
(C) 9 V peak-to-peak
(D) 12.74 V peak-to-peak
Vout = 500 mV, and Vin = 1.3 V. The ratio Vout/ Vin expressed in dB is__________?
(A) 0 dB
(B) 8.30 dB
(C) -8.30 dB
(D) 0.8 dB
A parallel resonant band-pass filter consists of a 6.8 Ω resistor in series with a parallel network made up of an 8 µH coil and a 120 pF capacitor. The output is taken across the capacitor/coil. Assume RW = 0 Ω. What is the center frequency of the filter?
(A) 5.14 MHz
(B) 514 kHz
(C) 5.03 MHz
(D) 503 kHz
In a certain low-pass filter, fc = 3.5 kHz. If the input voltage is a 6 V sine wave with a dc level of 10 V, what is the output voltage magnitude?
(A) 0 V
(B) 5.97 V
(C) 6 V
(D) 597 mV
An RL low-pass filter consists of a 5.6 mH coil and a 3.3 kΩ resistor. The output voltage is taken across the resistor. The circuit’s critical frequency is______________?
(A) 93.8 kHz
(B) 93.8 Hz
(C) 861 Hz
(D) 86.12 kHz