Electricity Definitions

a material, often metal, through which electrons can move freely

• Insulator

• Semiconductor

• Conductor

• Resistor

a material that prevents or limits the flow of electricity

Example.

glass, air

• Conductor

• Superconductor

• Insulator

• Semiconductor

how well a material conducts electricity; a physical property of matter

• Electrical conductivity

• Optical density

• Magnetic permeability

• Thermal conductivity

An electrical circuit in which all components are on the same continuous electrical path.

• Parallel circuit

• Open circuit

• Short circuit

• Series circuit

The flow rate of charge, measured in amps (A).

Example.

3 amps (3 A)

• current

• voltage

the lowest potential, or voltage, in a circuit

• Ground

• Voltage source

• Negative terminal

• Positive terminal

Which of the following are synonyms for the term "voltage"?

Select all answers that apply.

• potential difference

• potential

• potential energy

• voltage drop

What is the unit of electric current?

• Volt

• Ampere

• Ohm

• Watt

Which of the following is a device used to measure electric current?

• Voltmeter

• Ammeter

• Ohmmeter

• Wattmeter

What is the term for the opposition to the flow of electric current in a material?

• Voltage

• Resistance

• Capacitance

• Inductance