Electrostatics Flashcards
Electrical Potential
Formula for electrical potential energy
Electrical Potential
Definition of electrical potential difference (voltage)
Electrical Potential
Electrical potential from potential energy formula
Electrical Potential
Voltage
Defined as the difference in electric potential when moving a test charge from one position to another.
Electrical Potential
Charge movement
Test charges move spontaneously to minimize their electric potential
For a negative charge (ie q is negative), they will move toward higher potential
For a positive charge, they will move toward lower potential
Magnetic materials
Magnetic materials
Diamagnetic materials
Diamagnetic materials have no unpaired electrons and are strongly repelled.
Magnetic materials
Paramagnetic materials
Paramagnetic materials have some unpaired electrons and are weakly magnetic
Magnetic materials
Ferromagnetic materials
Ferromagnetic materials have some unpaired electrons and are strongly magnetic
Dipoles
Dipoles consist of two opposite charges of equal magnitude.
Dipole moment formula
Electric field formula
Electric fields
Field lines
Field lines represent force vectors for the activity of a positive test charge. Stronger force is indicated by lines being bunched closer together.
Electric fields
Equipotential lines
On a field diagram, dashed lines represent lines with equal electrical potential at every point. These are perpendicular to field lines
Unit of magnets
SI unit is the tesla (T). Created by magnets or moving charges
Right hand rule
Helps you determine the directions of current and magnetic field.
Force of magnetic field on a moving charge formula
Force of magnetic field on a current-carrying wire formula
Electrical forces
Coulomb’s law formula
Electrical forces
Coulomb’s constant
