A. 790 Ω
B. 470 Ω
C. 60 Ω
D. 30 Ω
0
Four equal-value resistors are connected in parallel. Ten volts are applied across the parallel circuit and 2 mA are measured from the source. The value of each resistor is______________?
0
When a 1.6 kΩ resistor and a 120Ω resistor are connected in parallel, the total resistance is____________?
A. 12.5 Ω
B. 200 Ω
C. 20 KΩ
D. 50 Ω
0
An ammeter has an internal resistance of 50 Ω. The meter movement itself can handle up to 1 mA. If 10 mA is applied to the meter, the shunt resistor, RSH1, is approximately___________?
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
0
Four 8 Ω speakers are connected in parallel to the output of an audio amplifier. If the maximum voltage to the speakers is 12 V, the amplifier must be able to deliver to the speakers_____________?
A. 55 Ω
B. 5.5 Ω
C. 50 Ω
D. 9 Ω
0
A sudden increase in the total current into a parallel circuit may indicate______________?
A. 18 W
B. 1.5 W
C. 48 W
D. 72 W
0
Three 47 Ω resistors are connected in parallel across a 110 volt source. The current drawn from the source is approximately_______________?
A. a drop in source voltage
B. an open resistor
C. an increase in source voltage
D. either a drop in source voltage or an open resistor
0
In a five-branch parallel circuit, there are 12 mA of current in each branch. If one of the branches opens, the current in each of the other four branches is_______________?
A. 2.3 A
B. 780 mA
C. 47 mA
D. 7.06 A
0
Five light bulbs are connected in parallel across 110 V. Each bulb is rated at 200 W. The current through each bulb is approximately___________?
A. 48 mA
B. 12 mA
C. 0 A
D. 3 mA
0
A set of Christmas tree lights is connected in parallel across a 110 V source. The filament of each light bulb is 1.8 k. The current through each bulb is approximately___________?
A. 2.2 A
B. 137 mA
C. 1.8 A
D. 9.09 A
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