What is a branch and what is a trunk in a circuit? 40

Trunk and branch are relative, and trunk is the main path in a circuit that is able to pass the full current; A branch is a small circuit that connects a trunk circuit, and generally only a part of the current can be passed. For example, the switch is a switch on the main road, and the plug is a switch on the branch road. Node:

The point at which three or more wires meet.

The circuit between nodes is called a tributary.

The circuit from the node to the power supply is called a trunk circuit.

The sum of the currents flowing into the node = the sum of the currents flowing out of the node.

In a parallel circuit, the overlapping part of the circuit through which all electrical currents pass is called a dry circuit. A branch is just one part of a loop that does not intersect other circuits. There are either trunk or branch circuits in the circuit.

The current starts from the positive electrode and returns to the negative electrode, so in this process, the part of the circuit through which the current passes is the trunk circuit, and the part of the circuit through which only part of the current passes is the branch circuit.

In appearance, the trunk road resembles the trunk of a tree, with no branches growing from the roots.

What comes out of the trunk of the tree are branches, and what comes out of the trunk is a branch.

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According to the power supply voltage and the total electrical resistance, the current reached is the current of the backbone, and the line current is equal to the obtained current, the line is the trunk, if it is not equal, it is a branch.

Or it can be understood that the main road without branches in the circuit is the trunk road, and the branches with branches become branches.

In a parallel circuit, a circuit drawn from the power supply is called a branch, and several circuits drawn down from the road are called branches

The judgment of branch roads and trunk roads is actually very simple. The side roads of this road are similar to the trunk roads. The sum of the currents of the main circuits on the interconnected circuits = the sum of the currents of all the branches.

Basically, starting from the positive pole of the power supply and returning to the negative pole through the electrical appliances is the trunk road, and the road with diversion is the road.

The difference between trunk road and branch road is:

First, the reference is different.

1. Trunk road: a driving lane specially built for motor vehicles from one city to another.

2. Branch road: a small road branched out from a trunk road.

Second, the focus is different.

1. Trunk roads: the main way of transportation.

2. Side road: a narrow section of the road to reach the destination.

Third, the driving rules are different.

2. Branch roads: The traffic level is lower than that of the main road, and the vehicles that are driving normally on the main road should be courteous when merging into the main road.

1. The magnitude of the current flowing is different. In a circuit, a trunk refers to the path through which the total current flows, while a branch refers to a branch of the trunk circuit.

2. The connected objects are different. In the circuit, the trunk circuit is generally connected to the power supply part, while the branch circuit is separated from the trunk circuit, that is, many branches are connected to the trunk circuit.

3. The connection method is different. The trunk circuit is the total part in the circuit, which is generally connected in series, while the branch circuit must be connected in parallel.

In circuits, branch and trunk are the basic circuit terms.

The trunk circuit usually refers to the main path responsible for transmitting current in the power supply, switch, main line and other circuits, and the current is evenly distributed among the branches. These branches may include devices such as lights, appliances, sockets, etc., which are connected to the main road to receive the power provided by the power supply.

Branch roads refer to equipment and accessories such as electrical appliances, lights, and sockets connected to trunk roads. These branches generally include wiring, switches, electrical appliances or electric lights, and their current passes through the branch from the trunk and flows back to the ruler trunk circuit, where the power supply provides energy.

Therefore, the trunk circuit is mainly responsible for transmitting the current of the hungry potatoes, while the branch circuit is connected to the trunk road and provides the electrical energy required by the equipment through the current of the rotten person on the trunk road. It can be said that the branch is included in the trunk circuit, and the current and voltage parameters of the branch are relatively low compared to the trunk circuit.

In circuits, branch and trunk are two important concepts.

1.Branch: A branch is a branch through which the current flows through a circuit, a circuit that is connected in parallel with the main circuit. A branch can exist anywhere in the circuit, and it may be connected to other branches or trunks in parallel. In a branch road, the current magnitude and direction can be different from that of the trunk road.

2.Trunk circuit: A trunk circuit refers to the path in the circuit that is directly connected to the power supply, and its role is to transfer electrical energy to all parts of the circuit.

The trunk circuit is usually the most important part of the circuit, as it is the main current path between the power supply and the load, and may also exist in the branch.

Simply put, a trunk circuit is the main current path in a circuit, while a branch circuit is a branch circuit that splits off from a trunk circuit and can flow to other resistive, capacitive, or inductive components.

Main circuitIt is composed of a group of components (such as power supplies, switches, electrical appliances, etc.) that are connected before and after the basic current transmission task, and the current will flow from the power supply through the various components in the main circuit. Cover the plum bush.

WhileSlip roadsIt refers to one or more independent lines connected in parallel with the main circuit, which can be controlled and managed through components such as switches and fuse disturbing wires. The branch usually has Hongying's own electrical components, such as bulbs, motors, fans, etc., which are connected to the main circuit through the branch, so as to realize the functions of various electrical equipment.

Both the branch and the trunk circuit play an important role in the circuit, the branch realizes the function of various electrical equipment by connecting with the main circuit, and the trunk circuit is responsible for transmitting the current to make the whole circuit run normally.

In circuits, branch and trunk are two important concepts.

Branch: A branch is a smaller circuit in a circuit that is separated from the trunk. The branch is usually composed of electronic components such as resistor disturbance stand-air, capacitor, inductor, diode, triode, etc. The function of the branch is to change the characteristics of the circuit such as current, voltage, and resistance.

Trunk Circuit: A trunk circuit refers to the main current path in a circuit, that is, the continuous conductive path from the source to the load. Trunk circuits usually consist of power supplies, switches, relays, circuit protectors, loads, etc. The function of the slow blind trunk road is to provide electrical energy, so that the circuit is rolling and working normally.

Therefore, the difference between a branch and a trunk is that they play different roles and functions in a circuit. A trunk circuit is the main current path in a circuit that is responsible for providing electrical energy, while a branch circuit is a smaller circuit that is separated from a trunk circuit and is responsible for changing the characteristics of the circuit such as current, voltage, and resistance.

In circuits, branch vertical and trunk are two common concepts that they describe:The flow path of the current in the circuit.

Trunk circuit: A trunk circuit is the path where the current flows primarily in a circuit, also known as a main circuit or main circuit. It connects a power source (such as a battery or electrical outlet) and a load (such as a light bulb, electric motor, or other electronic device).

In a simple circuit, a dry circuit is the path where current flows from the power source into the load and from the load back to the power supply. Trunk circuits usually consist of wires, circuit switches, fuses, etc.

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A branch is an auxiliary circuit path separated from the trunk circuit, which is connected in parallel with the trunk circuit. Branches are usually connected to branch points on the trunk road, through which the current can be directed to different loads or electrical equipment. Branches can be connected to switches, sockets, or other electrical devices on power or other trunk circuits.

Trunk Road: The route through which the total current of a parallel circuit flows, like a tree trunk. Branch: The route through which the branch current of a parallel circuit flows, like a tree branch. The electric keys on the main road can control the electrical appliances on the branch circuit, which refers to the circuit parts that are not directly connected to the two ends of the power supply through the electrical appliances.

A branch of a circuit is each branch of a circuit that can pass the same current. , which is divided into active branches (the branches contain a power source) and passive branches. In a circuit, a branch is a single circuit element or a series of several circuit elements in series, forming a branch, on which the same current flows, and each branch in the circuit is called a branch.

1. A line that is connected in parallel from a line is called a branch road.

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A part of the power supply system, where the circuit branches are each branch of the rock branch circuit that can pass the same current. , which is divided into active branches (the branches contain a power source) and passive branches. In the circuit, the branch is a single circuit element or a series of several circuit elements, forming a branch, a branch is flowing through the same current, and each branch in the circuit is called a branch.

Choose a series of circuits, and each selected circuit has a new leg that is not available in the originally selected circuit. Then this series of loops is called independent loops.

A circuit that contains and contains only one branch, called the basic circuit of the diagram of the circuit, has n nodes, and the number of branches in any tree is n-1 and the number of branches is b-(n-1).

The simplest circuit is composed of power supply, electrical appliances (loads), wires, switches and other components. When the circuit is on, it is called a path, and when it is disconnected, it is called an open circuit. Only in the path, there is a forest-like current passing through the circuit.

A break in a circuit is called an open circuit or an open circuit. If there is no load between the positive and negative poles of the power supply in the circuit and it is directly connected, it is called a short circuit, and this situation is never allowed.

Another kind of short circuit refers to the direct connection between the two ends of a component, and the current flows through the direct connection without passing through the component. An open circuit (or open circuit) is allowed, but the first short circuit is never allowed, because the short circuit of the power supply will cause the power supply to burn out, and the short circuit of the electrical appliance will lead to the occurrence of the phenomenon that the electrical appliances and meters cannot work normally.

First figure out the independent companion node, the three wires (the line on the schematic) are connected to Qique together is a node, first mark these nodes Lu Bang brother, the components connected between the two nodes constitute a branch, you can number it, and wait for all the branches after it is completed.