# Shared Flashcard Set

## Details

Circuits
N/A
14
Physics
Professional
03/05/2013

Term
 electric current
Definition
 flow of electrons through a conductor
Term
 DC
Definition
 electrons made to flow in one direction along the conductor the graph of waveform is a straight line
Term
 AC
Definition
 current in which electrons oscillate back and forthmost applications require itwaveform will be a sine curveelectrons flow first in positive direction, then a negative directiononce the reach maximum flow, the electric potential is reduced, returns to zero, and reverses the motion
Term
 series circuit
Definition
 a circuit in which the current only has one path to travelall component parts are connected end to enda break anywhere in the path results in an open circuit and stops flow of electronsthe total resistance is equal to the sum of the individual resistances along the pathsum of voltages across each resistor is equal to the total circuit voltage
Term
 parallel circuit
Definition
 a circuit in which there are more than one path for the current to flowcomponents are branches of the main circuita break in any one path doesnt interrupt the flow of charge in the other parts
Term
 resistance (series circuit)
Definition
 total resistance is equal to the sum of the seperate resistancesRt= R1+ R2+ R3
Term
 current (series circuit)
Definition
 current is the same everywhere in the currentIt=I1=I2=I3
Term
 voltage drop (IR drop) series circuit
Definition
 sum of the voltage drops must add up to the EMF or voltage of the sourceVt= V1+ V2+ V3
Term
 voltage (series circuit)
Definition
 the total voltage is equal to the sum of all the voltages across each resistor
Term
 power formula
Definition
 total power is the sum of the power consumed or dissipated by each resistor or loadPT= P1+ P2+ P3
Term
 resistance (parallel circuit)
Definition
 the total resistance is always less than the lowest valued resistor1/RT= 1/R1+ 1/R2+ 1/R3
Term
 current (parallel circuit)
Definition
 the total current will equal the sum of the current in each branchIt= I1+ I2 +I3
Term
 voltage (parallel circuit)
Definition
 the same in all branches of the circuitVt= V1= V2= V3
Term
 power (parallel circuit)
Definition
 total power is the sum of all the power consumed in each branchPt= P1+ P2+ P3
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