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Transcript
Electronics: Intro Quantities: Voltage Current Power Devices: Resistor Capacitor Inductor LED Transistor Op-Amp Laws: Ohm’s Law Kirchhoff’s Laws QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. Voltage QuickTime™ and a GIF decompressor are needed to see thi s picture. QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. QuickTime™ and a Photo - JPE G decompressor are needed to see thi s picture. Voltage QuickTime™ and a GIF decompressor are needed to see thi s picture. QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. QuickTime™ and a Photo - JPE G decompressor are needed to see thi s picture. Voltage = pressure that pushes electrons through circuit Water analogy: voltage = altitude of water Current QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. Current Current = flow of electrons through circuit Water analogy: current = flow of water QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. Power http://www.usbr.gov/power/data/ sites/glencany/glencany.html http://en.wikipedia.org/wiki/ Hydroelectric QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. http://www.wapa.gov/newsroom/ cct/2005/july15/27no141a.htm Power http://www.usbr.gov/power/data/ sites/glencany/glencany.html http://en.wikipedia.org/wiki/ Hydroelectric QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. http://www.wapa.gov/newsroom/ cct/2005/july15/27no141a.htm Power = voltage x current Water analogy: power = altitude drop x flow Resistor QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. QuickTime™ and a TIFF (LZW) decompressor are needed to see this picture. Resistor QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. QuickTime™ and a TIFF (LZW) decompressor are needed to see this picture. Resistor reduces current flow Water analogy: flow less for winding river Capacitor QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. Capacitor Capacitor stores charge Water analogy: tank stores water QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. Inductor QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. 1H http://www.magnariders.com/html/ Rides/rally/2005_Rally.html Inductor QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. 1H http://www.magnariders.com/html/ Rides/rally/2005_Rally.html Inductor creates magnetic field opposing current change Water analogy: mill wheel with inertia opposes flow change LED QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. D http://www.furuier.com/english/ product/index0.htm http://www.xmission.com/~m3lody/ junk/xmas2002/lit_waterfall1.jpg LED QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. D http://www.furuier.com/english/ product/index0.htm http://www.xmission.com/~m3lody/ junk/xmas2002/lit_waterfall1.jpg LED lights up and acts like voltage drop Water analogy: lit waterfall Transistor C QuickTi me™ and a Photo - JPEG decompressor are needed to see this picture. B E QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. Transistor QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. C QuickTi me™ and a Photo - JPEG decompressor are needed to see this picture. B E Transistor current flow controlled by second small current flow Water analogy: spillway for dam controlled by hydraulic line Op-Amp QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. Op-Amp QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. Op-amp magnifies voltage across inputs Water analogy: Lever translates small pressure into high pressure Ohm’s Law 9V 3ž i QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. QuickTime™ and a TIFF (LZW) decompressor are needed to see this picture. Ohm’s Law 9V 3ž i QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. QuickTime™ and a TIFF (LZW) decompressor are needed to see this picture. Current in resistor = voltage / resistance Water analogy: flow = altitude drop / length of river Kirchhoff’s Voltage Law 9V v1 v2 QuickTime™ and a GIF decompressor are needed to see this picture. QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. Kirchhoff’s Voltage Law 9V v1 v2 QuickTime™ and a GIF decompressor are needed to see this picture. Sum of voltage drops around loop = 0 Water analogy: total altitude change for loop = 0 QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. Kirchhoff’s Current Law i1 i2 i3 QuickTime™ and a TIFF (LZW) decompressor are needed to see this picture. QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e. Kirchhoff’s Current Law i1 i2 i3 QuickTime™ and a TIFF (LZW) decompressor are needed to see this picture. Sum of current flowing out of node = 0 Water analogy: what flows in must flow out QuickTi me™ and a TIFF ( Uncompressed) decompressor are needed to see thi s pi ctur e.
