We just need to arrange them in to a circuit! First we need power, man – this symbol here is a cell, or battery. That one’s a motor – we don’t need that one. But that’s a light bulb – ...

You can put all kinds of other components in the circuit, to be powered by the cell. Like a motor. Or you can even ... The circuit symbol for a battery is made by joining two or more cell symbols.

Ah! There we go! You can put all kinds of other components in the circuit, to be powered by the cell. Like a motor. Or you can even put in a switch that can temporarily break the circuit.

Below is a circuit diagram for a greenhouse fan. When the greenhouse becomes too hot (above 27 degrees Celsius), a motor fan will switch on to cool the greenhouse down. the microcontroller has ...

Circuit symbol: the diode symbol consists of a triangle pointing towards a line. The triangle represents the anode, and the line represents the cathode. Forward-biased diode: an ideal diode ...