39 True/False questions

length → If one resistor follows another directly so that current can follow only one pathway through both resistors, they are called ____ resistors.

load → term for the potential added to a positive charge moving through a battery

semiconductors → term for materials with intermediate values of resistivity

equivalent resistance → term for a single resistance with the same effect as other resistances in combination

voltage → term for a meter that measures the voltage (IR drop) across a resistor

resistivity → term for the constant of proportionality in the resistance equations

multimeter → term for a meter that measures the voltage (IR drop) across a resistor

nonohmic → term that desribes conductors that fail to display constant resistance over a a wide range of voltages

crosssectional area → _____ ____ treats electricity as a movement of positive charge from a positively charged region to a negatively charged region.

series → If one resistor follows another directly so that current can follow only one pathway through both resistors, they are called ____ resistors.

conductor → term for the parts of a circuit that provide the pathway between the battery and the load

Ohm's law → term for the equation V = IR

ammeter → term for a meter that measures the resistance of a resistor

ohmmeter → term for a meter that measures the resistance of a resistor

opencircuit voltage → The voltage listed on a battery is sometimes referred to as its _____ ____.

internal resistance → term for a single resistance with the same effect as other resistances in combination

Kirchhoff's second law → tha law that states that, at any circuit junction, the incoming current must equal the outgoing current

drift velocity → term for the average velocity of an electron in the direction of current

principle of charge conservation → the principle that states that charge can neither be created nor destroyed

Kirchhoff's first law → the law that states that the sum of all the voltages around a full circuit must equal zero

closedcircuit voltage → The voltage listed on a battery is sometimes referred to as its _____ ____.

resistance → term for the constant of proportionality in the resistance equations

IR drop → term for the product IR, which specifies the potential drop over a pure resistance R carrying a current I

current source (battery) → term for the part of a circuit that boosts the energy of a charge before sending it out at one terminal

closed circuit → If R has a finite value other than zero, a circuit is described as a(n) ____ ____.

circuit → term for a pathway for current

ohmic → term that describes conductors whose resistance remains constant over a wide range of voltages

network → term for a circuit that contains any combination of series and parallel resistors

voltmeter → term for a meter that measures the resistance of a resistor

Conventional current → The resistance of a conductor is inversely proportional to its ______ ____.

rheostat → The resistance of a conductor is directly proportional to its ____.

short circuit → term for a circuit which does not permit current because its resistance is essentially infinite

galvanometer → term for a meter that measures small amounts of current

conductors → term for the parts of a circuit that provide the pathway between the battery and the load

insulators → term for materials composed of atoms that hold tightly to their electrons and are poorly suited to conduct a current

parallel → If the current follows different pathways through the resistors, they are ____ resistors.

junctions → term for a circuit that contains any combination of series and parallel resistors

superconductive → term for materials with intermediate values of resistivity

open circuit → term for a circuit which does not permit current because its resistance is essentially infinite