Flashcards in Current Electricity Deck (21):
__________ are literal representations of circuits
Pictorial Circuit Diagrams
_________ are the standard format to represent circuits
Schematic Circuit Diagram
Which way do electrons flow?
Negative - positive
Which way does current flow?
Positive - Negative
What is the electric potential difference?
Electrons accumulate at one terminal, making it negative and the other positive. The electrons are energized to go to the positive terminal; difference between anode and cathode
Is the anode positive or negative?
Is that cathode positive or negative?
What is resistance?
Anything you add to a circuit that hinders the motion of electrons (motor, light bulb)
Resistance depends on which 4 factors?
Type of material, length, diameter, temperature
What is the formula for resistance?
R = V/I
What is the formula for density?
D = m/V
What is the formula for current?
I = Q/t
What is the formula for potential different / voltage?
V = E/Q
1 electron is _________ coulombs.
1 electron = 1.602 x 10^-19 coulombs
1 coulomb is _________ electrons
1 coulomb = 6.25 x 10^18 electrons
What are the formulas for calculating total resistance?
Series = R1 + R2 + R3...
1/ Parallel = 1/R1 + 1/R2 + 1/R3...
What is the symbol for charge?
What is the symbol for current?
What is the unit for energy?
What is the unit for charge?