Week 5 Flashcards
An interconnection of elements linked together to form a closed path over which a current may flow continually
Electrical circuit
Three main components of a basic circuit
Energy source, interconnecting path, components
Flow of electrons within a conductor
Current
Units to measure current
Amperes (A)
Type of current which flows only in one direction and uses a constant value
Direct Current
Type of current which has a flow that reverses direction several times per second
Alternating Current
Energy required to move a charge, which causes a current to flow via interaction between negative and positive
Voltage
Unit for resistance
Ohms
Type of resistor which comes in a variety of shapes and sizes but has only one set, unadjustable ohmic value
Fixed Resistor
Type of resistor which can change its value over a specific range, such as a potentiometer
Variable Resistors
Most important fundamental law in electrical circuits which relates voltage, current, and resistance
Ohm’s Law
Formula for Ohm’s Law
i = V/R
The time rate of supplying or receiving energy
Power
Unit for power
Watts (W)
Formula for calculating power
W = (V)(i)
Unit for charge
Coulomb (C)
Type of circuit lined up in a row with one path for electricity
Series Circuit
Type of circuit having many paths for electricity
Parallel Circuit
Method used to find voltage drop across a single resistor from a collection of series resistors in a series circuit
Voltage division
