Two 1.2 kΩ resistors are in series and this series combination is in parallel with a 3.3 kΩ resistor. The total resistance is____________?
(A) 138 Ω
(B) 1,389 Ω
(C) 5,700 Ω
(D) 880 Ω
A certain voltage divider consists of two 12 kΩ resistors in series. Which of the following load resistors will have the most effect on the output voltage?
(A) 1 MΩ
(B) 24 kΩ
(C) 18 kΩ
(D) 12 kΩ
A series resonant band-pass filter consists of a 2 mH coil, a 0.005 µF capacitor, and a 120 Ω resistor. The winding resistance of the coil is 12 Ω. The output voltage is taken off the resistor. Input voltage is 12 Vrms. What is the output voltage magnitude at the center frequency (f0)?
(A) 10.9 V
(B) 1.09 V
(C) 1.1 V
(D) 12 V
A series resonant band-stop filter consists of a 68 Ω resistor, a 110 mH coil, and a 0.02 µF capacitor. The internal resistance, RW, of the coil is 4 Ω. Input voltage is 200 mV. Output voltage is taken across the coil and capacitor in series. What is the output voltage magnitude at f0?
(A) 1.1 mV
(B) 11.1 mV
(C) 111 mV
(D) 200 mV
In a certain low-pass filter, fc = 3.5 kHz. Its passband is____________?
(A) 3.5 kHz
(B) 0 Hz
(C) 0 Hz to 3.5 kHz
(D) 7 kHz
In a certain parallel resonant band-pass filter, the resonant frequency is 14 kHz. If the bandwidth is 4 kHz, the lower frequency_____________?
(A) is 7 kHz
(B) is 10 kHz
(C) is 12 kHz
(D) cannot be determined
At a certain frequency, the output voltage of a filter is 6 V and the input is 12 V.the filter’s bandwidth is____________?
(A) 530 Hz
(B) 106 Hz
(C) 11.5 Hz
(D) 53 Hz
The first goal to accomplish in analyzing a complex series-parallel circuit is to____________?
(A) solve for all the voltage drops
(B) solve for the total current and resistance
(C) equate all series components
(D) equate all parallel components
The positive (+) and negative (-) ends of the battery are called ___________?
(A) circuit diagram
(B) battery knobs
(C) battery terminals
(D) battery sides
When a Wheatstone bridge is in a balanced condition, the center voltmeter in the bridge will read_____________?
(A) twice the source voltage
(B) half the source voltage
(C) zero volts
(D) the same as the source voltage