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Exam 7: Combination Circuits

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Question 1

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In a parallel circuit, the total resistance is equal to the ____.

A) reciprocal of the sum of the reciprocals of the branch resistances
B) product of the resistors divided by the sum of the resistors when the circuit has two resistors
C) value of one resistor divided by the number of resistors when the circuit contains two or more resistors of the same value
D) all of the above
E) b and c only

F) C) and D)
G) A) and C)

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Question 2

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A section of a combination circuit composed of parallel resistors is called a ____.

A) circuit adds
B) resistor adds
C) node
D) parallel block

E) B) and D)
F) C) and D)

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D

Question 3

Multiple Choice

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In a ____ circuit, the sum of the voltage drops of the individual resistors must equal the applied voltage.

In a ____ circuit, the current is the same at any point in the circuit.

A ____ circuit has more than one path for current flow.

If a parallel circuit contains two resistors whose values are 30 ohms and 20 ohms, the total resistance of the circuit is ____ ohms.

In a ____ circuit, the total current is the sum of the current through all of the circuit paths.

In a ____ circuit, the total resistance is the sum of the individual resistors.

In a combination circuit, a 100-ohm resistor is in series with two 50-ohm resistors that are in parallel with each other. The total resistance of the circuit is ____________________ ohms.

In a ____ circuit, the voltage across any circuit branch is the same as the total voltage.

A ____ circuit has only one path for current flow.

When using Ohm's law to determine the applied voltage of a parallel circuit in which the value of the circuit amperage and resistance are known, the formula used would be ____.

A ____ circuit contains elements of both series and parallel circuits.

A point in a circuit when current reaches a junction point of resistors and splits is called a ____________________.

If a circuit contains three resistors whose values are 50 ohms, 30 ohms, and 70 ohms, and the total resistance of the circuit is 150 ohms, the circuit is a ____________________ circuit.