A closed path along which electrons that are powered by an energy source can flow
What is a Voltaic Cell?
A source of energy that generates an electric current by chemical reactions involving two different metals or metal compounds separated by a solution or conductor
What is a Battery?
A connection of two or more cells
What is an Electrode?
One of two metal terminals in a cell or battery
What is an Electrolyte?
A solution or paste that conducts charges
What is a Dry Cell?
A cell that contains an electrolyte that is a paste
What is a Wet Cell?
A cell that contains liquid electrolyte
What is a Primary Cell?
A cell that can be used only once
What is a Secondary Cell?
A cell that can be recharged
What is a Solar Cell?
A cell that converts sunlight into electrical energy
What is a Fuel Cell?
A cell that generates electricity through the chemical reactions of fuel that is stored outside the cell
What is a Solar Cell?
A cell that converts sunlight into electrical energy
What is a Terminal?
A position on a cell that must be connected to other components to form a circuit
What is a Switch?
A control device that can complete or break the circuit to which it is connected
What is an Open Circuit?
A circuit that contains a gap or break
What is an Electric Current?
A measure of the charged particles that pass by a point in an electric each second
What is a Coulomb (C)?
The quantity of charge that is equal to the charge of 6.25 x 10 electrons
What is an Ampere (A)?
The unit of electric current, equivelent to one coulomb per second
What is Electrical Resistance?
The property of a substance that hinders electric current and converts electrical energy to other form of energy
What is a Resistor?
A device used in an electric circuit to decrease the current through a component by a specific amount
What is a Load?
A resistor or any other device that transforms electrical energy into heat, motion, sound, or light
What is Potential Difference (Voltage)?
The difference between the electric potential energy per unit of charge at two points in a circuit
What is a Volt?
The unit for potential difference; equivelent to one Joule (J) per Coulomb (C)
What is a Circuit Diagram?
A diagram that uses standard symbols to represent the components in an electric circuit and their connections
What is a Series Circuit?
A circuit in which there is only one path along which electrons can flow
Series and Parallel circuits are compared below:
What is a Parallel Circuit?
A circuit in which there is more than one path in which electrons can flow
Series and Parallel circuits are compared below:
What is Ohm's Law?
The ratio of potential difference to current is a constant called resistance
What is an Ohm ()?
The unit for resistance, equivelent to one volt per ampere (V/A)
What is a Superconductor?
A material through which electrric electric charge can flow with no resistance