They are used to adjust the sensitivity of the circuit like temperature or light. The resistance is adjusted with rotary control present on top of it with the help of a screw driver. It is also called Trimmer Resistor or Trim Pot. Generally used in tuning circuits and power control applications like heaters, ovens etc They are generally used to control the current in the circuit. These two symbols are used to represent fixed resistor. It is a device that opposes the flow of current in a circuit. It acts as a barrier between user and the circuit and prevents electric shock. There may be several signal grounds in a circuit due to the voltage drops in a circuit. It is a reference point from which the signal is measured. It is the potential of perfectly conducting earth.

It is equivalent to theoretical 0V and is used as zero potential reference. Represents pulse or square wave generator. Usually depends on other sources (voltage or current).Ĭombination of multiple single cell batteries or a single large cell battery. Usually depends on other sources (voltage or current). The symbol represents an independent current source which delivers constant current. This represents AC supply in the circuit. This can control the AC Loads using the DC voltage applied to the coil. This can connect the four circuits by changing the position. This switch can drive two circuits at a time.ĭouble pole double throw is the full form of DPDT. This switch allows the current to flow in any one of the two directions by adjusting its position.ĭouble pole single throw is abbreviated as DPST. Single pole double throw is abbreviated as SPDT. Poles define the number of circuits it can be connected to and throws defines the number of positions that a pole connects.

Single pole single throw is abbreviated as SPST. This goes to OFF state when it is released. This switch is in ON state when the button is pressed otherwise it is in OFF state. Represents a number of conductors joined together to form a bus wire. Represents a bus for output or outgoing data. Represents a bus for input or incoming data. Represents two unconnected wires/conductors. Represents the connection of two conductors. Also called a power line or electric line or wire. Represents a conductor that conducts electrical current. Hope this information will helps to understand clearly.Įlectrical Symbols & Electronic Symbols WIRES These are mostly we used for draw circuit diagrams.īelow are different kind of symbols we mentioned category wise. There are many electrical and electronic schematic symbols are used to signify basic electronic or electrical device. This article gives some of the frequently used symbols for drawing the circuits. There are some standard symbols to represent the components in a circuits. Electrical symbols or electronic circuits are virtually represented by circuit diagrams.

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