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A 12 resistor, a 40 F capacitor, and an 8 mH coil are in series across an ac source. The resonant frequency is
A. 28.1 Hz
B. 281 Hz
C. 2,810 Hz
D. 10 kHz
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A 12 resistor, a 40 F capacitor, and an 8 mH coil are in series across an ac source. The resonant frequency is
A. 28.1 Hz
B. 281 Hz
C. 2,810 Hz
D. 10 kHz
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A resistor of 3 k, a 0.05 F capacitor, and a 120 mH coil are in series across a 5 kHz, 20 V ac source. What is the impedance, expressed in polar form?
A. 636
B. 3,769
C. 433
D. 4,337
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A 15 resistor, a 220 H coil, and a 60 pF capacitor are in series across an ac source. What is the bandwidth of the circuit?
A.138 MHz
B. 10,866 Hz
C. 1,907 Hz
D. 138 kHz
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In a series RLC circuit that is operating above the resonant frequency, the current
A. lags the applied voltage
B. leads the applied voltage
C. is in phase with the applied voltage
D. is zero
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A 10 resistor, a 90 mH coil, and a 0.015 F capacitor are in series across an ac source. The impedance magnitude at 1,200 Hz below fr is
A. 1,616
B. 161
C. 3,387
D. 1,771
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Referring to Problem 14, if a 10 k load is connected to the higher of the two outputs, the loaded voltage value will be
A. 3.48 V
B. 4 V
C. 2 V
D. 4.92 V
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In a certain five-step R/2R ladder network, the smallest resistor value is 1 k. The largest value is
A. indeterminable
B. 2 k
C. 10 k
D. 20 k
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A balanced Wheatstone bridge consists of an RV of 3,500 , an R2 of 200 , and an R3 of 680 . The value of RUNK is
A.680
B. 1,029
C. 200
D. 880
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Two 3.3 k resistors are in series and this series combination is in parallel with a 4.7 k resistor. The voltage across one of the 3.3 k resistors is 12 V. The voltage across the 4.7 k resistor is
A. 24 V
B. 12 V
C. 0 V
D. 6 V
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A 6 V battery output is divided down to obtain two output voltages. Three 2.2 k resistors are used to provide the two taps. The two output voltages are
A. 2 V, 4 V
B. 2 V, 2 V
C. 2 V, 6 V
D. 4 V, 6 V
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A 12 k resistor, a 15 k resistor, and a 22 k resistor are in series with two 10 k resistors that are in parallel. The source voltage is 75 V. Current through the 15 k resistor is approximately
A. 14 mA
B. 1.4 mA
C. 5 mA
D. 50 mA
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The parallel combination of a 470 resistor and a 680 resistor is in series with the parallel combination of four 2 k resistors. The total resistance is
A. 1,650
B. 1,078
C. 77.8
D. 778
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A certain circuit is composed of two parallel resistors. The total resistance is 1,403 . One of the resistors is 2 k. The other resistor value is
A. 1,403
B. 4.7 k
C. 2 k
D. 3,403
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When a load resistance is removed from the output of a voltage divider circuit, the current drawn from the source
A. decreases
B. increases
C. remains the same
D. is cut off
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The parallel combination of a 6.8 k resistor and a 10 k resistor is in series with the parallel combination of a 2.2 k resistor and a 1 k resistor. A 100 V source is connected across the circuit. The resistor(s) with the greatest voltage drop is (are)
A. 6.8 k
B. 2.2 k
C. 6.8 k and 10 k
D. 2.2 k and 1 k
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The internal resistance of a 30,000 ohm/volt voltmeter set on its 50 V range is
A.15,000
B. 150,000
C. 1,500,000
D. 15,000,000
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On which of the following voltage range settings will a voltmeter present the minimum load on a circuit?
A. 1 V
B. 50 V
C. 500 V
D. 1,000 V
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A certain Wheatstone bridge has the following resistor values: RV = 10 k, R2 = 720 , and R4 = 2.4 k. The unknown resistance is
A. 24
B. 2.4
C. 300
D. 3,000
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The parallel combination of a 470 resistor and a 1.5 k resistor is in series with the parallel combination of five 1 k resistors. The source voltage is 50 V. The percentage of the load current through any single 1 k resistor is
A. 25% B. 20%
C. 100% D. 50%
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