Question 1

A source current is often easier to work with-especially when calculating values for ____ circuits-than a voltage source, which drops voltages across series elements.
A)parallel
B)perpendicular
C)circular
D)distant

Accepted Answer

In parallel circuits, the same voltage is present across all elements, regardless of their individual resistances. Therefore, a source current is often easier to work with since it allows for direct calculation of the current flowing through each element.

Question 2

Under the superposition theorem, we do an analysis for each power source, and the resulting currents are then algebraically combined to determine the magnitude and direction of each current flow.

Accepted Answer

This statement accurately describes the process under the superposition theorem.

Question 3

Power sources represented by a current source are connected to a perpendicular resistance that delivers a certain amount of current such as 1 ampere, 2 amperes, 3 amperes, and so on.

Accepted Answer

A current source delivers a constant current regardless of the voltage across it or the resistance connected to it. The amount of current it delivers does not depend on the orientation or characteristics of the connected resistance, but on the specification of the current source itself.

Question 4

Norton's theorem assumes that the source of current is divided among parallel branches.

Accepted Answer

Norton's theorem simplifies a network to a single current source in parallel with a resistor, implying that the current is divided among parallel branches.

Question 5

The superposition theorem is developed on the principle that, in a circuit with multiple power sources, we can determine just how much each power source contributes toward the branch currents.

Accepted Answer

The statement correctly describes the principle of the superposition theorem.

Question 6

When using ____, we can pretend to place all components, except one resistor, into a black box and bring out only the two terminals labeled A and B.
A)Thevenin's theorem
B)the superposition theorem
C)Kirchhoff's voltage law
D)the black box theorem

Accepted Answer

Thevenin's theorem states that we can simplify a complex circuit into an equivalent circuit with just a single voltage source and resistor, and that we can use this equivalent circuit to analyze the behavior of the original circuit. The idea of placing all components except for one resistor into a black box and bringing out only the two terminals labeled A and B is a simplified way of describing the process of finding the Thevenin equivalent circuit for a more complex circuit.

Question 7

Norton's theorem,developed by American scientist E.L.Norton, is used to ____ a circuit network into a simple current source and a single parallel resistor.
A)reduce
B)manipulate
C)translate
D)divide

Accepted Answer

Norton's theorem is used to reduce a circuit network into a simple current source and a single parallel resistor.

Question 8

It is assumed that you can completely solve a system of simultaneous equations with multiple unknowns.

Accepted Answer

If there are as many equations as unknowns, a unique solution can be found by solving the system of equations. In case there are more equations than unknowns, it is possible that the system has no solution or that some of the equations contradict each other.

Question 9

When asked to find the magnitude and direction of all branch currents using the superposition theorem, our first step is to eliminate all but one of the batteries by replacing them with a ____.
A)resistor
B)short circuit
C)direct circuit
D)larger power source

Accepted Answer

When using the superposition theorem, we eliminate one source at a time and replace it with a short circuit. This is because a short circuit will effectively remove the influence of that source while still allowing current to flow through the circuit. Replacing a battery with a resistor, direct circuit, or larger power source would not achieve the same effect.

Question 10

Using the superposition theorem, the currents through each resistor must be added algebraically, so currents flowing in the same direction are being added, and currents flowing in opposite directions are being ____.
A)multiplied
B)divided
C)ignored
D)subtracted

Accepted Answer

When applying the superposition theorem, currents flowing in opposite directions are being subtracted to account for their cancellation.

Question 11

A network is any complex arrangement of circuit elements and often involves multiple voltage sources, and the use of Ohm's and Kirchhoff's laws usually suffice to solve related problems.

Accepted Answer

The answer of A network is any complex arrangement of...

Question 12

According to Thevenin's theorem, if we need to know specific information about a resistor, we can simplify our task by reducing the rest of the network to a single equivalent series circuit of one emf and one resistance, known as Thevenin's ____ and Thevenin's resistance.
A)magnetism
B)voltage
C)current
D)reduction

Accepted Answer

According to Thevenin's theorem, we can simplify a network to a single equivalent series circuit with one emf and one resistance, known as Thevenin's voltage and Thevenin's resistance.

Question 13

____ sources are generally shown as a battery with a resistance connected in series with the circuit to represent the internal resistance of the source.
A)Current
B)Electromagnetic
C)Heat
D)Voltage

Accepted Answer

Voltage sources are generally shown as a battery with a resistance connected in series with the circuit to represent the internal resistance of the source. This is known as an ideal voltage source model.

Question 14

Norton's theorem is very similar to Thevenin's theorem.

Accepted Answer

The answer of Norton's theorem is very similar to Thevenin's...

Question 15

Voltages sources are rated with some amount of voltage, such as 12 volts, 24 volts, and so on.

Accepted Answer

Voltage sources are rated with a certain amount of voltage, which is typically stated in volts (V).

Question 16

In a circuit with ____ power sources, each power source contributes toward the current flow through the resistors.
A)interconnected
B)variable
C)parallel
D)multiple

Accepted Answer

In a circuit with multiple power sources, each power source contributes to the total voltage and affects the current flow through the resistors accordingly. This is because the total voltage in the circuit is the sum of the voltages of all the power sources, and the current flowing through the resistors is divided among the different branches of the circuit based on the resistance of each branch and the voltage available to it.

Question 17

The ____ method applies to circuits with a series of interconnected branches forming loops.
A)loop mesh
B)loop circuit
C)loop current
D)mesh

Accepted Answer

The answer of The ____ method applies to circuits with...

Question 18

When we say that the contents within an imaginary black box may be thevenized, we mean that they are reduced to the simple equivalent circuit.

Accepted Answer

When an imaginary black box is thevenized, its contents are simplified to a simple equivalent circuit that can be analyzed more easily.

Question 19

Occasionally, an electronics technician is confronted with a complex network of emfs and resistors for the purpose of verifying the electrical data for only one of the resistors.

Accepted Answer

It is possible for an electronics technician to be faced with a complex network of emfs and resistors, and they may need to verify the electrical data for only one resistor.

Question 20

When we have multiple power sources and use the superposition theorem to determine just how much each power source contributes toward the branch currents, we do this by considering ____.
A)only one power source at a time
B)all the power sources at one time
C)at least two power sources at a time
D)only half of the power sources

Accepted Answer

When we use the superposition theorem, we consider one power source at a time and determine its contribution to the branch currents while ignoring all other sources. This is done for each source separately, and then the individual contributions are added together to obtain the total branch currents.

Quiz 24: Solving DC Networks

A source current is often easier to work with-especially when calculating values for ____ circuits-than a voltage source, which drops voltages across series elements.

Under the superposition theorem, we do an analysis for each power source, and the resulting currents are then algebraically combined to determine the magnitude and direction of each current flow.

Power sources represented by a current source are connected to a perpendicular resistance that delivers a certain amount of current such as 1 ampere, 2 amperes, 3 amperes, and so on.

Norton's theorem assumes that the source of current is divided among parallel branches.

The superposition theorem is developed on the principle that, in a circuit with multiple power sources, we can determine just how much each power source contributes toward the branch currents.

When using ____, we can pretend to place all components, except one resistor, into a black box and bring out only the two terminals labeled A and B.

Norton's theorem,developed by American scientist E.L.Norton, is used to ____ a circuit network into a simple current source and a single parallel resistor.

It is assumed that you can completely solve a system of simultaneous equations with multiple unknowns.

When asked to find the magnitude and direction of all branch currents using the superposition theorem, our first step is to eliminate all but one of the batteries by replacing them with a ____.

Using the superposition theorem, the currents through each resistor must be added algebraically, so currents flowing in the same direction are being added, and currents flowing in opposite directions are being ____.

A network is any complex arrangement of circuit elements and often involves multiple voltage sources, and the use of Ohm's and Kirchhoff's laws usually suffice to solve related problems.

According to Thevenin's theorem, if we need to know specific information about a resistor, we can simplify our task by reducing the rest of the network to a single equivalent series circuit of one emf and one resistance, known as Thevenin's ____ and Thevenin's resistance.

____ sources are generally shown as a battery with a resistance connected in series with the circuit to represent the internal resistance of the source.

Norton's theorem is very similar to Thevenin's theorem.

Voltages sources are rated with some amount of voltage, such as 12 volts, 24 volts, and so on.

In a circuit with ____ power sources, each power source contributes toward the current flow through the resistors.

The ____ method applies to circuits with a series of interconnected branches forming loops.

When we say that the contents within an imaginary black box may be thevenized, we mean that they are reduced to the simple equivalent circuit.

Occasionally, an electronics technician is confronted with a complex network of emfs and resistors for the purpose of verifying the electrical data for only one of the resistors.

When we have multiple power sources and use the superposition theorem to determine just how much each power source contributes toward the branch currents, we do this by considering ____.