Multiple Choice (Value 4)
Identify the choice that best completes the statement or answers
the question.
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1.
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The number of current paths in a series circuit is:
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2.
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A 4.0-W resistor, an 8.0-W
resistor, and a 10.0-W resistor are connected in series across an 11-V
battery. The total voltage drop across the 4.0-W and 8.0-W resistors is:
a. | 2.0 V | c. | 6.0 V | b. | 4.0 V | d. | 11 V |
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3.
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A/An _____ is described as a type of circuit in which there is only a single
current path.
a. | parallel circuit | c. | short circuit | b. | series circuit | d. | voltage divider |
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4.
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_____ is described as the sum of all the individual resistances in a
series.
a. | Equivalent resistance | c. | Series circuit | b. | Parallel circuit | d. | Short circuit |
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Short Answer (Value 10)
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5.
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Compare and contrast the voltages and the currents in series and parallel
circuits.
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6.
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Generate an explanation for the following equation for resistors in
series: R = RA + RB + ...
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7.
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A 12 ohm, 2-W resistor is connected in parallel with a 6.0 ohm, 4-W
resistor. Which will become hotter if the voltage across them keeps increasing?
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8.
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Compare the voltage drop in a voltage divider to a volume control in a CD
player.
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9.
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Generate an explanation for the following equation: I = Vsource
/ R
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Problem
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10.
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A series circuit is made up of a 12.0 V battery and three resistors. The
voltage across one resistor is 1.21 V, and the voltage across another resistor is 3.33 V. What
is the voltage across the third resistor?
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11.
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A 10 ohm, a 15 ohm, and a 5 ohm resistor are connected in a series circuit with
a 90 V battery. What is the equivalent resistance of the circuit? What is the current in
the circuit?
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12.
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Three resistors, 120.0 ohms, 60.0 ohms, and 40.0 ohms are connected in a
parallel across a 120.0 V battery.
a) Find the equivalent resistance of the circuit.
b)
Find the current through the entire circuit.
c) Find the current through each branch of the entire
circuit.
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13.
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A student makes a voltage divider from a 45 V battery, a 475 ohm resistor, and a
235 ohm resistor. The output is measured across the smaller resistor. What is the
voltage?
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