eletrical circuits

Ameter - used to measure electric current in a circuit

Cell- source of chemical energy that is transferred into eletric current

Battery -Two or more cells connected together

Diode- a non ohmic conductor allows current to flow in one direction

Fuse-saftey device that has thin wire which melts if too much current passes through

Filament lamp- emits light

Light dependant resistor-light intensity increases so resistance decreases

Light emitting diode- emits light when current flows in one direction

Resistor-limits the flow of eletrical charge

Switch closed- provides a path for current to flow around

Switch opened- prevents current from flowing

Thermistor- temp increases so resistance decreases

Variable resistor-used to control current by changing resistance

Voltmetre- useds to measure potential difference in a component