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holes, separated into two groups of ﬁve. Behind each hole is a small spring which contacts
any wire pushed into the hole. This spring is connected to neighbouring holes so that there
is an electrical connection between wires pushed into adjacent holes. Fig (2) shows a section
of the breadboard. Note that the holes are usually connected in groups of ﬁve, so that Figure 2: Diagram to show the connections between the holes in a breadboard. you can connect up to ﬁve wires at one point. The rows of holes at the top and bottom
of the breadboard are normally used to provide high voltage and ground connections. The
breadboards are provided with eight dummy terminals which allow you to connect a power
supply to the circuit which you have constructed. 2 Multimeters
A multimeter is the most useful measuring instrument which you will ﬁnd in the laboratory.
It allows you to measure voltage, current and resistance in both AC and DC circuits. Be
aware that in AC mode, the multimeter will give a null reading when connected...
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This note was uploaded on 02/13/2014 for the course PHYS 2055 taught by Professor Drayethiraj during the Winter '14 term at Memorial University.
- Winter '14