Circuits Flashcards
Meters
Measures, Inserted, and Resistance of Ammeter, voltmeter and Ohmmeter
Parallel Plate Capacitors
Consist of two plates, which store equal amounts of opposite charges with dielectric material inserted in between.
Parallel Plate Capacitors
Dielectric material
A material placed in between plates of a capacitor. Increases capacitance according to the dielectric constant k of the material.
Parallel Plate Capacitors
Capacitance in a parallel plate capacitor formula
Parallel Plate Capacitors
Electric field of a capacitor formula
Parallel Plate Capacitors
Potential energy of a capacitor formula
Currents
The movement of charge between two points.
Note that by convention, charge goes from high potential to low potential, but at the atomic level electrons move from low potential to high potential.
Current formula
Currents
Kirchhoff’s junction rule
Sum of currents going into a junction equals sum of currents leaving a junction.
Currents
Kirchhoff’s loop rule
The sum of all voltage changes across a loop is equal to zero
Conductivity
Conductivity (σ) measures the ability of electrons to flow inside a material
Proportional to concentration of charged atoms
Resistivity
A measure of the ability to store charge. SI unit = farad (F)
capacitance
Capacitance formula
Capacitance in series
Capacitance in parallel
Opposition to movement of charge through a material. SI unit = ohm (Ω)
Resistance
Resistance formula
Resistors in series formula
Resistors in parallel formula
Ohm’s Law
Power in resistors formula
