Series and parallel circuits

Every circuit is comprised of three major components:

• a conductive “path,” such as wire, or printed etches on a circuit board;
• a “source” of electrical power, such as a battery or household wall outlet, and,
• a “load” that needs electrical power to operate, such as a lamp.

Every electric circuit, regardless of where it is or how large or small it is, has four basic parts: an energy source (AC or DC), a conductor (wire), an electrical load (device), and at least one controller (switch). Visualize what happens when you switch on a room light.

• There are two types of circuit we can make, called series and parallel.
• If there are no branches then it’s a series circuit.
• If there are branches it’s a parallel circuit.

In electronics, a circuit is a closed path that allows electricity to flow from one point to another. It may include various electrical components, such as transistors, resistors, and capacitors, but the flow is unimpeded by a gap or break in the circuit. A flashlight is an example of a basic circuit.

: an electrical circuit in which the continuity is broken so that current does not flow.

A circuit diagram (also known as an electrical diagram, elementary diagram, or electronic schematic) is a simplified conventional graphical representation of an electrical circuit. Arrangement of the components interconnections on the diagram does not correspond to their physical locations in the finished device.

When it is connected to a complete circuit, electrons move and energy is transferred from the battery to the components of the circuit. Most energy is transferred to the light globe (or other energy user) where it is transformed to heat and light or some other form of energy (such as sound in iPods).

To produce an electric current, three things are needed: a supply of electric charges (electrons) which are free to flow, some form of push to move the charges through the circuit and a pathway to carry the charges. The pathway to carry the charges is usually a copper wire.

An electrical cell is an “electrical power supply”. It converts stored chemical energy into electrical potential energy, allowing positive charges to flow from the positive terminal to the negative one through an external circuit.

Ammeter, instrument for measuring either direct or alternating electric current, in amperes. An ammeter can measure a wide range of current values because at high values only a small portion of the current is directed through the meter mechanism; a shunt in parallel with the meter carries the major portion.

Used for sensitive signals or power leakage. The correct symbol for high current return (common) is this one. often called “chassis earth” and it is a simple thick wire or the metal chassis that the circuit is mounted.

A battery (also known as a cell) provides a source of electrical energy. A battery symbol is made up of two or more cells. In a circuit, cells provide the ‘push’ that makes current flow. This is sometimes called its potential difference, or voltage. This is represented by the symbol V, measured in volts, V.

A diode is a semiconductor device that essentially acts as a one-way switch for current. It allows current to flow easily in one direction, but severely restricts current from flowing in the opposite direction.

Circuit Symbols 101

An electric switch is a device that interrupts the electron flow in a circuit. When the switch is turned off, the circuit breaks and the power flow is interrupted. Circuits consist of a source of power and load. A load is a power-powered device.

Circuit breakers may work more effective as safe switches, but they are not switches. They are not interchangeable. Therefore, using a circuit breaker as a switch is not recommended.

(1) In electrical engineering, a manual switch with two or more positions for closing and opening electrical control circuits. They are usually mounted on control boards and panels and are used in automatic and remote-control systems.

Switched communication networks are those in which data transferred from source to destination is routed between various intermediate nodes. Switching is the technique by which nodes control or switch data to transmit it between specific points on a network. There are 3 common switching techniques: Circuit Switching.

Answer. Answer: It behaves like to separate SPST configuring operating at the same time.It has only one on position,but it can actuate the two contacts simultaneously,such that each input contact will be connected to its corresponding output contact.

Switches keep traffic between two devices from getting in the way of your other devices on the same network. Switches allow you to control who has access to various parts of the network. Switches allow you to monitor usage. Switches allow communication (within your network) that’s even faster than the Internet.

Functions of a Network Switch, Learning, Forwarding and Preventing Layer 2 Switching Loops. Three basic functins of a switch are Learning, Forwarding and Preventing Layer 2 Loops.

The types of switches are classified into four types namely: SPST (Single Pole Single throw) SPDT (single pole double throw) DPST (double pole, single throw)

Just as a switch connects multiple devices to create a network, a router connects multiple switches, and their respective networks, to form an even larger network. These networks may be in a single location or across multiple locations.