Exercise: Series Parallel Circuits

Questions for: Series Parallel Circuits

What is the total resistance of a circuit when R1 (7 k omega.gif) is in series with a parallel combination of R2 (20 k omega.gif), R3 (36 k omega.gif), and R4 (45 k omega.gif)?
A:
4 k omega.gif
B:
17 k omega.gif
C:
41 k omega.gif
D:
108 k omega.gif
Answer: B
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With 21 V applied, if R1 = 5 ohms, R2 = 35 ohms, and R3 = 14 ohms, what is the current of R2 if R1 is series connected with parallel circuit R2 and R3?
A:
200 mA
B:
800 mA
C:
600 mA
D:
400 mA
Answer: D
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When a load is connected to a voltage divider, the total resistance of the circuit will:
A:
decrease
B:
double
C:
increase
D:
remain the same
Answer: A
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When a Wheatstone bridge is in a balanced condition, the center voltmeter in the bridge will read:
A:
twice the source voltage
B:
the same as the source voltage
C:
zero volts
D:
half the source voltage
Answer: C
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The current flowing through an unloaded voltage divider is called the:
A:
resistor current
B:
load current
C:
bleeder current
D:
voltage current
Answer: C
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