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In a threephase system, when the loads are perfectly balanced, the neutral current is A. zero B. onethird of maximum C. twothirds of maximum D. at maximum 
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In a threephase system, the voltages are separated by A. 45? B. 90? C. 120? D. 180? 
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The parallel combination of a 470 resistor and a 1.2 k resistor is in series with the parallel combination of three 3 k resistors. A 200 V source is connected across the circuit. The resistor with the most current has a value of A. 470 or 1.2 k B. 3 k C. 470 D. 1.2 k 
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A voltage divider consists of two 100 k resistors and a 12 V source. What will the output voltage be if a load resistor of 1 M is connected to the output? A. 0.57 V B. 6 V C. 12 V D. 5.7 V 
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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 fivestep 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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Referring to Problem 24, the voltage across the 1.5 k resistor is approximately A. 1.8 V B. 18 V C. 3.2 V D. 32 V 
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A certain voltage divider consists of three 1 k resistors in series. Which of the following load resistors will have the least effect on the output voltage? A. 1 M B. 100 k C. 1 k D. 330 
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