A resistor is an electrical tool used to resist the electric current. It is used in a variety of electrical appliances to resist the extra amount of current. The physics and electronic illustrations & diagrams have different symbols to indicate different types of resistors. To illustrate these diagrams in soft forms you do require symbols of these resistors. The below table gives a complete set of symbols as well as a brief description of their features for different resistors.
Resistor symbols of electrical & electronic circuit diagram - resistor, potentiometer, variable resistor.
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Resistor (IEEE) | Resistor reduces the current flow. |
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Resistor (IEC) | |
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Potentiometer (IEEE) | Adjustable resistor - has 3 terminals. |
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Potentiometer (IEC) | |
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Variable Resistor / Rheostat (IEEE) | Adjustable resistor - has 2 terminals. |
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Variable Resistor / Rheostat (IEC) | |
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Trimmer Resistor | Preset resistor |
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Thermistor | Thermal resistor - change resistance when temperature changes |
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Photoresistor / Light dependent resistor (LDR) | Photo-resistor - change resistance with light intensity change |
This table offers all types of resistors and their symbols. Here you can find IEC and IEEE resistors, both work to reduce the current flow in the circuit. IEEE & IEC potentiometers which are adjustable 3 terminal tools. Two terminal variable resistors. Special resistors like LDR( light depending resistor) and thermister. LDR depends on light to perform its resisting function while a thermistor is a temperature detecting resistor which starts opposing current when the temperature crosses a certain predefined limit.
You can find symbols of all these resistors as well as information about their basic features and detailed descriptions.
It is also a semi-circle. To include a motor in the circuit create a circle by drawing an M letter in its middle. A resistor, also known as a component, controls the flow of electric current across the circuit. Every circuit has switches so that the electricity flow can be switched off and then turned back on.