Flashcards in RT 205 Electricity Deck (28):
Formula for Ohm's Law
V= Potential Difference (Volts)
I= Current (Amperes)
R= Resistance (Ohms)
Formula for Power Law
P= Power (Watts)
I= Current (Amperes)
V= Voltage (volts)
The study of the distribution of fixed charges (electrons) that are not at rest
Electron charges being added and subtracted from an object
First Law of electrostatics
Repulsion-Attraction - Like charges repel, negative charges attract
Second Law of electrostatics
Inverse square law - Force between two charges directly proportional to product of their magnitudes and inversely proportional to square of distance between them.
Third Law of electrostatics
Distribution - Charges reside on the external surface of conductors
Fourth Law of electrostatics
Concentration - The greatest concentration of charges will gather at sharpest area of curvature
Fifth Law of electrostatics
Movement - Only negative charges move along solid conductors.
Electrical force is proportional to the product of the electrical charge and inversely proportional to the square of the distance.
Formula for Coulomb's Law
F= k (q1 x q2/d^2
k= 9.00 x 10^9 Nm^2/C^2
q1= electrified charge of object 1
q2= electrified charge of object 2
d^2= distance between the two objects
The fundamental charge is the electrical chare on an charge on an electron and has a magnitude of ________________.
1.6 x 10^-19 C
A coulomb is the charge resulting from the transfer of ______________, which is the charged carried by an electron.
6.24 x 10^18
Have a small fraction of their electrons, which are not bound to atoms, which move freely around.
A substance, usually a solid chemical element or compound, that can conduct electricity under some condition, but not others.
Substances that inhibit the flow of electrons
Electrons move from areas of high to low concentration
Conventional Electric Flow
Going from a positive to a negative pole
Conventional Electron Flow
Going from negative to a positive pole
AC Sine wave-
Electrons flow in one direction and than the other.
DC Sine wave -
Electrons travel in one direction
1 Amp = ___________
1 Amp = 1 Coulomb/sec
AC Current = ____________ or ____________
AC Current = 60 cycles/sec = 60 Hz
Measures the voltage across a circuit
Measures resistance of one resistor in a circuit
1 Voltage = _____________
1 Voltage = 1 J/C