Electrostatics Flashcards
For _ sign means direction so look for if charge is positive or negative and the direction of the electric field.
Forces
Always draw _ _ _.
Free body diagrams
No _ inside a conducting sphere but there is in an insulating sphere.
Force
Electric fields are always drawn as _ because they are vectors.
Arrows
Electric fields go from _ _ _.
+ to –
_ arrows mean stronger field.
Longer
_ arrows mean more charge.
More
Electric field gets smaller as it gets _ _ from charge so arrows get shorter.
Farther away
No _ inside a conducting sphere but there is in an insulating sphere.
Field
Equipotential isolines are drawn _ to field lines.
Perpendicular
+– means a _ will make it spin when launched in an electric field.
Torque
An electric field applies a _ to charged objects.
Force
The vector of a _ charge is in the direction of the electric field and the vector of a _ charge is in the opposite direction of the electric field.
Positive, negative
Parallel plates produce _ fields.
Uniform
Field lines _ near the edges of parallel plates.
Curve
Point charges produce _ fields.
Non-uniform
Always draw a _ _ for each point charge and do _ of the magnitude of the electric fields (Superposition)
Vector diagram, sums
Treat a conducting sphere like a _ _.
Point charge
All charges are multiples of _ (1.6x10-19 C) and no such thing as half of an electron.
Quanta
_ are easily removed and added and _ don’t move.
Electrons, protons
A _ particle will have more charge.
Bigger
_ share charge.
Conductors
In _ charge goes to the outside.
Conductors
In _ charge collects at sharp points.
Conductors
_ polarize.
Inductors
In _ charges stay where they’re put.
Inductors
_ is polarizing then grounding (electrons move in or out).
Induction
A charged particle in an electric field has an electric _.
Potential
Zero electric potential is called _.
Ground
For potentials -2 is smaller than -1 so sign does not mean _.
Direction
Moving from different _ lines takes energy.
Equipotential
Positive charges will be forced by the electric field to areas of more _ potential.
Negative
_ potentials.
Add
A capacitor is a charge _ device.
Storage
Once charged you disconnect the battery and wire to make a _.
Capacitor
