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The first goal(s) to accomplish in analyzing a complex series–parallel circuit is to
equate all parallel components
solve for the total current and resistance
equate all series components
solve for all the voltage drops
If a 1 k and a 2 k resistor are parallel-connected across a 12 V supply, how much current is received by the 2 k resistor
8 mA
12 mA
6 mA
4 mA
In the given circuit, Channel 1 of the stereo amplifier outputs 12 V to thespeakers.
How much total current is the amplifier providing to the speakers
1.5 a
More information is needed to find the total current provided to the speakers.
3 A
0 A
If the load in the given circuit is 120 k , what is the loaded output voltage
16 V
19.67 V
4.21 V
15.79 V
When parallel resistors are of three different values, which has the greatest power loss
The largest resistance
They have the same power loss.
The smallest resistance
Voltage and resistance values are needed.
Which is considered to be the common reference for a parallel circuit
Current
Power
Voltage
resistance
What is the product-over-sum result of 150 and 6800
0.006
150
146.7
6800
A Thevenin equivalent circuit contains _____
a voltage source in series with a resistance
a current source in series with a resistance
many voltage sources
resistors in a series-parallel configuration
In the given circuit, the voltage at point A equals ______
+9 V
+1 V
–10 V
+10 V
The total power in the given circuit is ___
7.2 mW
4.8 mW
18 mW
30 mW
Which component is shorted
r2
R1
r4
r3
What does RT equal in the given circuit
180
90
1.8 k
200
The current through R1 will be
48 mA
88 mA
128 mA
2.2 mA
The loading effect of a voltmeter can be ignored if ____
the meter's resistance is at least 10 times less than the resistance across which it is connected
the measured voltage is very high
the measured voltage is very low
Components that connect in parallel form
a voltage divider
open circuits
short circuits
Branches
If a Wheatstone bridge is balanced, a voltmeter in the center of the bridge will read
the same as the source voltage
half the source voltage
zero volts
twice the source voltage
What is the voltage to the load
15.4 V
12.4 V
13.4 V
11.4 V
What determines if resistor connections are in series, parallel, or series–parallel
resistance
current flow
the power source
the voltage source
If two parallel-connected resistors dissipate 6 watts and 10 watts of power, then what is the total power loss
16 watts
3.75 watts
4 watts
60 watts
The total current in the given circuit equals _____
86 mA
42 mA
128 mA
170 mA
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