Hey, just a bit of physics revision and I was wondering if anyone knew the function of these circuit components, what they do in the circuit, what they measure, why it's needed, etc. Here are the components in a circuit I need to know about:SwitchCellBatteryDiodeResistorVariable resistor LampFuseVoltmeterAmmeterThermistorI.D.R (What does that stand for?!)It would be great to go into detail of what they really do, although some may seem quite straight forward, and just common sense! Even if you don't know them all, or you just know a few, the explanations still help :) Thanks!
Switch- Turns the circuit on. Cell- Basically, a single battery Battery- A pair of cells. Diode- A semiconductor device with two terminals, typically allowing the flow of current in one direction only. Resistor-A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit. Variable Resistor- A variable resistor is a potentiometer with only two connecting wires instead of three. Lamp- A device for giving light, either one consisting of an electric bulb, together with its holder and shade or cover, or one burning gas or a liquid fuel. Fuse-an electrical device that can interrupt the flow of electrical current when it is overloaded. Voltmeter- A device that measures Volts. Ammeter- A device that measures Amps. Thermistor-A resistor whose resistance varies as a function of temperature. Thermistors are used in electrical devices such as thermometers and thermostats that measure, monitor, or regulate temperature. I.D.R- Interval data recorder.
