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Two series resistors are connected to an ac source. If there are 7.5 V rms across one resistor and 4.2 V rms across the other, the peak source voltage is
A
16.54 V
B
1.65 V
C
10.60 V
D
5.93 V
Correct Answer:
16.54 V
Two 3.3 kΩ resistors are in series and this series combination is in parallel with a 4.7 kΩ resistor. The voltage across one of the 3.3 kΩ resistors is 12 V. The voltage across the 4.7 kΩ resistor is
A
24 V
B
12 V
C
0 V
D
6 V
Two resistors are in series: a 5.6 kΩ resistor and a 4.7 kΩ resistor. The voltage drop across the 5.6 kΩ resistor is 10 V. The voltage across the 4.7 kΩ resistor is
A
8.39 V
B
10 V
C
2.32 V
D
0 V
The parallel combination of a 6.8 kΩ resistor and a 10 kΩ resistor is in series with the parallel combination of a 2.2 kΩ resistor and a 1 kΩ resistor. A 100 V source is connected across the circuit. The resistor(s) with the greatest voltage drop is (are)
A
6.8 kΩ
B
2.2 kΩ
C
6.8 kΩ and 10 kΩ
D
2.2 kΩ and 1 kΩ
Three 10 kΩ resistors are connected in series. A 20 kΩ resistor is connected in parallel across one of the 10 kΩ resistors. The voltage source is 24 V. The total current in the circuit is
A
900 μA
B
9 mA
C
90 mA
D
800 μA
A 12 kΩ resistor, a 15 kΩ resistor, and a 22 kΩ resistor are in series with two 10 kΩ resistors that are in parallel. The source voltage is 75 V. Current through the 15 kΩ resistor is approximately
A
14 mA
B
1.4 mA
C
5 mA
D
50 mA
In a series RC circuit, 12 V(rms) is measured across the resistor and 15 V(rms) is measured across the capacitor. The rms source voltage is
A
3 V
B
27 V
C
19.2 V
D
1.9 V
In a series RL circuit, 12 V rms is measured across the resistor and 14 V rms is measured across the inductor. The peak value of the source voltage is
A
18.4 V
B
26.0 V
C
2 V
D
20 V
A string of five series resistors is connected across a 6 V battery. Zero voltage is measured across all resistors except R3. The voltage across R3 is
A
0 V
B
1.2 V
C
6 V
D
0.6 V
The parallel combination of a 470 Ω resistor and a 1.2 kΩ resistor is in series with the parallel combination of three 3 kΩ resistors. A 200 V source is connected across the circuit. The resistor with the most current has a value of
A
470 Ω or 1.2 kΩ
B
3 kΩ
C
470 Ω
D
1.2 kΩ
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
60 mA
B
15 mA
C
135 mA
D
31.25 mA