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.Management Sciences
Category: Parallel Circuits
The power dissipation in each of four parallel branches is 1.2 W. The total power dissipation is________________?
0
A. 1.2 W
B. 4.8 W
C. 0.3 W
D. 12 W
Three 47 Ω resistors are connected in parallel across a 110 volt source. The current drawn from the source is approximately_______________?
A. 2.3 A
B. 780 mA
C. 47 mA
D. 7.06 A
The following resistors are in parallel across a voltage source: 220Ω , 470Ω , and 560Ω . The resistor with the least current is______________?
A. 220 Ω
B. 470 Ω
C. 560 Ω
D. impossible to determine without knowing the voltage
When a 1.6 kΩ resistor and a 120Ω resistor are connected in parallel, the total resistance is____________?
A. greater than 1.6 kΩ
B. greater than 120 but less than 1.6 kΩ
C. less than 120 but greater than 100 Ω
D. less than 100 Ω
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
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