# Shared Flashcard Set

## Details

Electricity
N/A
24
Physics
06/02/2009

Term
 Electric Potential Difference
Definition
 a product of the resistance between 2 points and the current blowing between the two points
Term
 Voltage
Definition
 the potential energy compared with the quantity of charge
Term
 Electric Potential
Definition
 aka voltage. the potential at a point a distance from a charge
Term
 Electric Potential Energy
Definition
 depends on location of charge in an electric field
Term
 Primary Function of Battery
Definition
 to push the electrons through the circuit
Term
 Energy Transformations Of Battery & Light Bulb
Definition
 chemical -> light/electric
Term
 Current
Definition
 flow of electrons
Term
 Conventional Current
Definition
 when the direction of flow is from positive to negative
Term
 Resistance
Definition
 factors that affect the flow of charged particles
Term
 Power
Definition
 *rate at which energy is changed from one form to another. *rate at which work is done.
Term
 Charge [symbol & unit]
Definition
 Q & coulumbs
Term
 Current [symbol & unit]
Definition
 I & amperes
Term
 Electric Potential [symbol & unit]
Definition
 EP & volts
Term
 Voltage [symbol & unit]
Definition
 V & volts
Term
 Energy [symbol & unit]
Definition
 E & joules
Term
 Power [symbol & unit]
Definition
 P & watts
Term
 Resitance [symbol & unit]
Definition
 *ohms* & ohms
Term
 Ohm's Law
Definition
 current through a circuit varies directly with the voltage ACROSS the circuit and inversely with the resistance IN the circuit
Term
 4 Factors That Affect Resistance & If They Increase/Decrease
Definition
 Width : greater width, lower resistanceLength: greater length, higher resistanceMake-Up Of MaterialTemperature: greater temperature, higher resistance
Term
 Why Is A Series A Voltage Divider?
Definition
 the voltage [potential energy compared w/ charge] gets split into the different resistors
Term
 Why Is A Parallel A Current Divider?
Definition
 the current gets split into the different wires
Term
 Increase In Resistors In Series for a) total resistance, b) total current, c) power supplied by battery
Definition
 a) increases b) decreases c) decreases
Term
 Increase In Resistors In Parallel for a) total resistance, b) total current, c) power supplied by battery
Definition
 a) decreases b) increases c) increases
Term
 AC vs DC curent
Definition
 DC : current made of e that flow in one direction. AC : current when e in circuit flow initially in one direction then in opp direction
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