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Circuit Components. Batteries, Resistors, Capacitors,. Circuit Parameters. Current Flow of electrons Voltage Potential which makes current flow in a conductor Resistance (Impedance) Property which impedes the flow of current. Circuit Parameters. Current Flow of electrons
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Circuit Components Batteries, Resistors, Capacitors,
Circuit Parameters • Current • Flow of electrons • Voltage • Potential which makes current flow in a conductor • Resistance (Impedance) • Property which impedes the flow of current
Circuit Parameters • Current • Flow of electrons • Electron 1.6*10-19 coulombs • Units: Ampere • Ampere = 1 coulomb/second • 6.25 *1018 electrons/second • Symbols & abbreviations • Amps, I
Circuit Parameters • Voltage • Electromotive Force (EMF) • Potential difference between two points • Units: Volts • Makes current flow through conductors • Symbols & abbreviations • V E
Circuit Parameters • Resistance • Property which impedes the flow of current • Units: Ohms • Ohm = 1 Volt / 1 Ampere • Symbol: Ω
Circuit Parameters Resistors 12V 6Ω Printed Circuit Sized Resistors Circuit with Battery and Resistor Ohm’s Law: I = V/R
Resistors Two digits plus multiplier AB*10C Yellow – Violet – Red 47*102 4700 Ω Brown – Black – Orange 10*103 10,000 Ω
Resistors Tolerance Gold +/-5% Silver +/-10% None +/-20%
Resistors Available in +/-10% Range of values is from 0.10 Ω To 22.0 x106 Ω Available in +/-5%
Circuit Parameters Capacitors C= Charge/Voltage = Q/V Units: Farad Smooths changes in voltage
Circuit Parameters Typical Resistor-Capacitor Circuit