 Shuffle Toggle OnToggle Off
 Alphabetize Toggle OnToggle Off
 Front First Toggle OnToggle Off
 Both Sides Toggle OnToggle Off
 Read Toggle OnToggle Off
Reading...
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
A key: Read text to speech.a key
Play button
Play button
12 Cards in this Set
 Front
 Back
EMF/voltage definition? unit? symbol?

def: electrical pressure that comes from a source like a battery
unit: volts (V) symbol: E 
resistance definition? unit? symbol?

def: obstacle in circuit that impedes current
unit: ohms (upsidedown horseshoe) symbol: R 
current definition? unit? symbol?

def: rate of electrons flowing through circuit
unit: amperes (A) symbol: I 
power definition? unit? symbol?

def: total electrical pressure dissipated by the resistor
unit: Watts (W) symbol: P 
formula relating voltage to current and resistance?

E = I / R

formula relating power to current and voltage?

P = E * I

conductance definition? unit? symbol?

def: resistance of parallel resisters; reciprocal of resistance
unit: siemens (S) symbol: G 
formula relating power to current and resistance?

P = I^2 * R

formula relating power to voltage and resistance?

P = E^2 / R

formula relating conductance to resistance?

G = 1 / R

formula relating total resistance of circuit (R) to series resistors (R1, R2, etc.)?

R = R1 + R2 + R3...

formula relating total resistance of circuit (R) to parallel resistors (R1, R2, etc.)?

R = 1 / [1 / R1 +1 / R2 +1 / R3...]
