Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
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 (up-side-down 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...]
|
