A. 490 mA
B. 800 mA
C. 310 mA
D. 0 A
0
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If one of the resistors in a parallel circuit is removed, the total resistance_____________?
0
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The following currents are measured in the same direction in a three-branch parallel circuit: 200 mA, 340 mA, and 700 mA. The value of the current into the junction of these branches is____________?
A. decreases
B. increases
C. remains the same
D. doubles
0
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Four resistors are connected in parallel. Fifteen mA flows through resistor R. If the second resistor is 2R, the third resistor 3R, and the fourth resistor 4R, the total current in the circuit is______________?
A. 200 mA
B. 540 mA
C. 1.24 A
D. 900 mA
0
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Six resistors are in parallel. The two lowest-value resistors are both 1.2 kΩ. The total resistance______________?
A. 60 mA
B. 15 mA
C. 135 mA
D. 31.25 mA
0
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Six resistors are in parallel. The two lowest-value resistors are both 1.2 kΩ. The total resistance_____________?
A. is less than 6 kΩ
B. is greater than 1.2 kΩ
C. is less than 1.2 kΩ
D. is less than 600 Ω
0
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The following resistors are in parallel across a voltage source: 220Ω , 470Ω , and 560Ω . The resistor with the least current is______________?
A. is less than 6 kΩ
B. is greater than 1.2 kΩ
C. is less than 1.2 kΩ
D. is less than 600 Ω
0
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In a certain three-branch parallel circuit, R1 has 12 mA through it, R2 has 15 mA through it, and R3 has 25 mA through it. After measuring a total of 27 mA, you can say that____________?
A. 220 Ω
B. 470 Ω
C. 560 Ω
D. impossible to determine without knowing the voltage
0
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Five 100 Ω resistors are connected in parallel. If one resistor is removed, the total resistance is______________?
A. R3 is open
B. R1 is open
C. R2 is open
D. the circuit is operating properly
0
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The total resistance of a parallel circuit is 50 Ω. If the total current is 120 mA, the current through the 270 Ω that makes up part of the parallel circuit is approximately_______________?
A. 25 Ω
B. 500 Ω
C. 100 Ω
D. 20 Ω