Terms in this set (23)
current in a circuit is directly proportional to the voltage impressed across it, and is inversely proportional to the resistance of the circuit.
A device or material that permits current to flow through it easily.
a device that slows the flow of current
A pathway for the flow of electricity
the difference in electrical charge between two points in a circuit expressed in volts. Free charge flows when there is a difference, and will continue until both points reach a common potential
a meter that measures the flow of electrical current in amperes
a device used to measure voltage, or electrical potential energy difference in Volts
an electric current that flows in one direction steadily
electric current that repeatedly reverses direction
An electrical device used to store electrical charge.
accidental contact between two points in an electric circuit that have a potential difference (shortens the path of the circuit and draws a dangerously large current because it bypasses the normal circuit resistance)
a material's opposition to the flow of electric current
the force of attraction or repulsion between objects due to charge
the difference in electrical potential energy between two places in a circuit (potential difference or electric potential)
the flow of electric charge, measured in Amperes (C/s)
A simple instrument that can measure multiple characteristics of an electric circuit, including its resistance and voltage.
a circuit in which the objects are connected in a single path
A circuit in which the parts are joined in branches such that the potential difference across each part is the same
electric lamp consisting of a glass bulb containing a wire filament (usually tungsten) that emits light when heated
Measured in watts, =Current x Voltage, the rate at which electrical energy is converted into mechanical energy, heat, or light.
voltage source, "electric pump" provides a steady supply of potential difference causing current in a circuit
Light-emitting diode. An electronic device that conducts current in one direction only and illuminates when it is conducting.
the reference point in an electrical circuit from which other voltages are measured, or a common return path for electric current, or a direct physical connection to the Earth