Constructing Basic Circuits Lab How to measure and calculate basic quantities in

Question

Constructing Basic Circuits Lab How to measure and calculate basic quantities in a circult Part 1: Using an Ohmmeter The digital meters on your lab tables can be used as ammeters, voltmet depending on the dial setting. Set your meter to Q. Notice there a unit indicated in the bottom right corner. Take the Unknown Resistance Board URB hereafter) and place the contacts on the two points joined by the number 1 reading down below, noting the units indicated on the screen or ohmmeters 1. is no range setting, but there is (referred to as . Write the URB 1: Now turn it over and measure the same resistor, but this time do it on either e Do you notice a difference? Should you? nd of the resistor 2. a. Now measure the rest of the resistors (using the screw contact points on top of the URB) and indicate their values in the table. 3. URB1 URB2URB3 URB 4 URB5 URB 6 URB7 URB8 URB9 0 Kg. | "eo Part 2: Using an ammeter The digital meters on your lab tables can be used as ammeters, voltmeters, or ohmmeters depending on the dial setting. Set your meter to mA with the straight line over it. This indicates that we are measuring Direct Current. Please note that and A are also options, why would these options be useful when measuring currents? 4. 5. it is common to indicate the pattern of connections in an electric circult with a schematic circuit diagram. The diagram abstracts the relevant features of the circuit and excludes extraneous details. These schematic diagrams often look very different from the equivalent physical circuits. Study the photograph in Figure 1 and be sure that you understand how it corresponds to the schematic diagram shown next to the photograph. Figure 1 RL

Explanation / Answer

4)

uA and A options are also available for the current reading.

These are equally important as is the mA. The simple reason is that the current we will be measuring will not always be in the mA range. It can be in the higher range, for which A will be used.

It can be in the lower range as well, for which uA will be used.

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