Electricity Chapter 11
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A closed path along which electrons that are powered by an energy source such as a battery can flow.
A cell of energy that generates an electric current by chemical reactions involving two different metals or metal compounds separated by a solution that is a conductor.
A connection of cells.
E.G 2 cells connected are 3 V
1 of 2 terminals in a cell
- A liquid that contains ions which can be
- decomposed by electrolysis.
e.g. Present in a battery.
An electric cell in which the electrolyte is absorbed in a solid to form a paste, preventing spillage.
An electric cell where the electrolyte is a liquid.
E.G Car battery
An electric cell that produces current by an irreversible chemical reaction.
A cell that can be recharged.
A cell producing an electric current directly from a chemical reaction.
A device that converts solar radiation into electricity.
A point of connection for closing an electric circuit.
E.G Terminals of a battery
A device for opening and breaking the connection in an electric circuit.
An electric circuit where the current isn't flowing.
The flow of electricity through a conductor.
The SI unit of electric charge. It is equal to the charge of approximately 6.241×10^18 electrons
A unit of electric current which is equal to a flow of one coulomb per second
A material's opposition to the flow of electric current which is measured using ohms.
A device having resistance to the passage of an electric current.
A device or the resistance of a device to which power is delivered.
- The difference of electrical potential between
- two points.
E.G The potential difference of a cell is usually 1.5 V
The SI derived unit for electric potential difference.
A simplified graphicalrepresentation of an electrical circuit.
A circuit which has its parts connected in series.
A closed circuit in which the current divides into two or more paths before recombining to complete the circuit
- A law stating that electric current is
- proportional to voltage and inversely proportional to resistance.
E.G V = IR
The SI unit of electrical resistance,transmitting a current of one ampere when subjected to a potential differenceof one volt.
A conductor with no electrical resistance when cooled to a certain point.
Resistors have changing ratios, and are defined by their instantaneous resistance
Loads in Series
Loads which are connected in a series connection.
Loads In Parallel
Loads which are connected in a parallel connection.
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