Capacitance
This the unit that measures capacitance
Farad (F)
Electric Field Strength is measured with this
Newtons per Coulomb (N/C)
This is the name of the law that describes the electric force between two charges
Coulomb's law
Electric Potential is directly proportional to this
Charge (Q)
What type of material does not allow electrons to flow freely within it when acted upon by an electric force
This is what happens to the capacitance if the distance between two parallel capacitors decreases
Increase
A positively charged particle directed parallel to a uniform electric field has this type of motion
Straight line
Two positively charged particles with charge 2Q at a distance of r have this magnitude of electric force
4kQ^2/r^2
By what factor does the electric potential of a charged particle if its charge doubles
2
Material 1 has a net negative charge. Material 2 has a net neutral charge. If Material 2 is grounded and Material 1 is brought near Material 2 and then Material 2 is ungrounded and then Material 1 is brought far away from Material 2 what is the charge of Material 2
Positive
What happens to the capacitance if a dielectric is inserted between two parallel plates
Increases
If the charge on a particle triples the electric field changes by this factor.
3
If the distance between two positively charged particles is doubled the electric force between them changes by this factor
1/4
The surface of a charged conductor in electrostatic equilibrium has this characteristic
Electric potential is equal everywhere
What experiment utilized an electric field setup between two parallel plates and oil droplets
Millikan Oil Drop Experiment
The capacitance changes by this factor when the distance between two parallel plates is quadrupled and the area of the two plates is tripled
3/4
Compared to flatter areas on an irregularly shaped conductor the sharper points have this characteristic
Greater electric field strength or higher surface charge density
The Electric Force between two charged particles changes by this factor when the charge on one particle triples and the distance r between them doubles
3/4
The Electric Potential Energy between two charged particles changes by this factor when the charge on one particle triples and the distance r between them doubles
3/2
If the magnitude of the electric potential energy between two charges is -12kQ^2/r^2 what was done by the electric field between the two charges
A capacitor has a capacitance of 3.0 μF and is connected to a 10 volt battery. The battery is disconnected and the distance between the plates is tripled. The new capacitance is this number.
1.0 μF
Two point charges are located on the x-axis. One is positively charged and has a greater electric charge and at x=0m. Another is negatively charged and at x=3m. In what region is the net electric field equal to 0
Initially a positively charged particle, charge of 2Q, is separated by a distance of r from a negatively charged particle, charge of -4Q, by what factor does the magnitude of the electric force between the two particles change if they are brought into contact with each other and then separated by the same distance r again
1/8
What is the electric potential energy of a system that has 3 point charges, 2 of charge 3Q and 1 of charge -2Q, located on the points of an equilateral triangle with side length r.
-3kQ^2/r
This founding father of the United States developed the lightning rod.
Benjamin Franklin