Electric and Magnetic Fields Flashcards
Electric field
A region of space that will cause charged particles to experience a force
Electric field lines
Imaginary visualizations of the region of influence of an electric field
Electric field strength
The force to charge ratio for a charged particle experiencing a force due to an electric field
Potential
A measure of possible field energy in a given location within that field. Electric potential is the energy per unit charge at that location
Potential difference
The change in potential between two locations in a given field
Equipotentials
Positions within a field with zero potential difference between them
Capacitor
An electric circuit component that stores charge, and so can be used as an energy store
Capacitance
A measure of the capability of a capacitor; the amount of charge stored per unit voltage across the capacitor, measured in farads, F
Time constant
For a capacitor-resistor circuit, the product of the capacitance and the resistance, giving a measure of the rate for charging and discharging the capacitor. symbol is curvy tiny T
Exponential curves
Mathematical function generated by each value being proportional to the value of one variable as the index of a fixed base: f(x)=b^x
Magnetic field
A region of space that will cause a magnetic pole to feel a force
Magnetic flux
referring to magnetic field lines, measured in Webers, Wb
Magnetic flux density
The ratio of magnetic flux to the area it passes through, unit Tesla, T
Magnetic field strength
An alternative phrase for magnetic flux density
Flux linkage
The amount of magnetic flux interacting with a coil of wire
