9 Current and Resistance

SI unit for current; 1A=1C/s

• ampere (amp)
• nonohmic
• ohm
• ohmic

complete path that an electrical current travels along

• resistance
• circuit
• resistivity
• schematic

current that flows through a circuit from the positive terminal of a battery through the circuit to the negative terminal of the battery

• drift acceleration
• drift velocity
• conventional current
• current density

flow of charge through a cross-sectional area divided by the area

• drift acceleration
• drift velocity
• conventional current
• current density

nonohmic circuit device that allows current flow in only one direction

• diode
• nonohmic
• circuit
• ohmic

velocity of a charge as it moves nearly randomly through a conductor, experiencing multiple collisions, averaged over a length of a conductor, whose magnitude is the length of conductor traveled divided by the time it takes for the charges to travel the length

• drift acceleration
• drift velocity
• conventional current
• current density

measure of a material’s ability to conduct or transmit electricity

• electrical power
• electrical drift
• electrical conductivity
• electrical current

rate at which charge flows, I=dQdt

• electrical power
• electrical drift
• electrical conductivity
• electrical current

time rate of change of energy in an electric circuit

• electrical power
• electrical drift
• electrical conductivity
• electrical current

type of a material for which Ohm’s law is not valid

• ampere (amp)
• nonohmic
• ohm
• ohmic