page_title: Electrical circuit
section_title: Electronic circuit
hierarchical_section_title: Electrical circuit / Electronic circuit
caption_attribution_description: English: Breadboard Čeština: Nepájivé pole
context_page_description: An electrical circuit is a path in which electrons from a voltage or current source flow.
  The point where those electrons enter an electrical circuit is called the "source" of electrons. The point where the electrons leave an electrical circuit is called the "return" or "earth ground". The exit point is called the "return" because electrons always end up at the source when they complete the path of an electrical circuit.
  The part of an electrical circuit that is between the electrons' starting point and the point where they return to the source is called an electrical circuit's "load". A load of an electrical circuit may be as simple as those that power home appliances like refrigerators, televisions, or lamps or more complicated, such as the load on the output of a hydroelectric power generating station.
  Circuits use two forms of electrical power: alternating current and direct current. AC often powers large appliances and motors and is generated by power stations. DC powers battery operated vehicles and other machines and electronics. Converters can change AC to DC and vice versa. High-voltage direct current transmission uses big converters.
context_section_description: Electronic circuits usually use direct current sources. The load of an electronic circuit may be as simple as a few resistors, capacitors, and a lamp, all connected together to create the flash in a camera. Or an electronic circuit can be complicated, connecting thousands of resistors, capacitors, and transistors. It may be an integrated circuit such as the microprocessor in a computer.
  Resistors and other circuit elements can be connected in series or in parallel. Resistance in series circuits is the sum of the resistance.
caption: An experimental electronic circuit
exif: {"Image ImageDescription": "DCF 1.0", "Image Make": "Minolta Co., Ltd.", "Image Model": "DiMAGE 7", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "A1v121e", "Image DateTime": "2008:05:26 10:29:23", "Image YCbCrPositioning": "Centered", "Image ExifOffset": "226", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail Orientation": "Horizontal (normal)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "14214", "Thumbnail JPEGInterchangeFormatLength": "9274", "Thumbnail YCbCrPositioning": "Centered", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "200", "EXIF ExifVersion": "0210", "EXIF DateTimeOriginal": "2008:05:26 10:29:23", "EXIF DateTimeDigitized": "2008:05:26 10:29:23", "EXIF ComponentsConfiguration": "YCbCr", "EXIF ShutterSpeedValue": "13/2", "EXIF ApertureValue": "7/2", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "7/2", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Daylight", "EXIF Flash": "Flash did not fire", "EXIF FocalLength": "421/16", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2560", "EXIF ExifImageLength": "1920", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "14066"}