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Series Circuits
Series Circuits
Which of the following series combinations dissipates the most power when connected across a 120 V source?
three 220 resistors
two 220 resistors
one 220 resistor
four 220 resistors
three 220 resistors
two 220 resistors
one 220 resistor
four 220 resistors
Answer
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Series Circuits
A certain series circuit consists of a 1/8 W resistor, a 1/4 W resistor, and a 1/2 W resistor. The total resistance is 1200 . If each resistor is operating in the circuit at its maximum power dissipation, total current flow is
190 mA
2.7 mA
27 mA
19 mA
190 mA
2.7 mA
27 mA
19 mA
Answer
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Series Circuits
A series circuit consists of three resistors with values of 120 , 270 , and 330 . The total resistance is
less than 120
the average of the values
120
720
less than 120
the average of the values
120
720
Answer
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Series Circuits
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
0 V
1.2 V
6 V
0.6 V
0 V
1.2 V
6 V
0.6 V
Answer
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Series Circuits
When a fourth resistor is connected in series with three resistors, the total resistance
increases by one-fourth
decreases
remains the same
increases
increases by one-fourth
decreases
remains the same
increases
Answer
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