Electronics Laboratory Report.

Laboratory wide report. Electronic laboratory practice Abstract The aim of this laboratory was to aim us familiar with how to office the variant types of electronic equipment and how to accurately drug abuse them to make measurements. The equipment used in this laboratory included (i) the signal beginning which was used to supply the power used in the various procedures, (ii) The range which was used to view and record the waves produced from the AC currents and then make relevant calculations based on that. iii) The DC power supply was used in the first dickens procedures which involved using the electric immunitys. (iv) Familiarised with the multimeter and used it to set about measurements (v) the essay jury which was used to do create most of the perimeters and labor the necessary measurements. number 1 The measurement of resistance. The resistances of the 5k? and 22k? resistors were implant using the speculation and by taking the literal readings. The resistanc es of the resistors were first measured by analyze the garble bands on the resistors to the colour code chart provided.The procedure for this is in that respect argon four bands on each(prenominal) of the resistors, and each colour on the band denotes a specific number on the resistor colour code chart, which gives us the signifi dopet figure and the multiplier which is in powers of 10. The set using the colour code were measured and name to be as follows. * 5. 1k? with a 5% tolerance * 21k? with 10% tolerance. These nominal phrase determine are the ones that are calculated but in reality the actual reputes of resistance can be a bit different from the ones calculated due to impurities.The actual resistances are measured by using a multimeter, the way this is done is that the resistors are mounted on an experiment board and then the multimeter is connected right crossways it. The set were recorded and strand to be as follows * 5. 037k? * 21. 047k? Nominal value Actual value 5k? resistor 5. 1k? 5% tolerance 5. 307k? 22k? resistor 21k? 10% tolerance 21. 047k In conclusion, it can be seen that there was a difference in the calculated nominal values of the resistors and the actual ones which were calculated.But they were still within their tolerance takes there could be plenty of reasons for that which might include different types of batteries, differences in temperature of the room, impurities in different sections of the experiment board which might have affected the readings. The tolerance level is defined as an allowable variation from a predefined standard. A value from an experiment or a variance is not considered significant unless it exceeds the specialise set by the tolerance limit. www. bridgefieldgroup. om/bridgefieldgroup/glos9. htm For this reason, we can assume these differences in the actual values of the resistors to be undistinguished since they were within the stated tolerances. Procedure 2 The measurement of electric poten tial. In this experiment, the principle was to create a emf rail-splitter circuit and to carry out the required measurements were undertaken to prove the principle of the electromotive force rail-splitter. For that, a circuit was created where a supply voltage was applied crossways dickens resistors R1 and R2 in series as shown in the figure below.And the two comparisons shown below were used to make the necessary calculations. Image source http//www. ermicro. com/ communicate/wp-content/uploads/2008/11/basic_r01. jpg http//diy. griffshp. com/wp-content/VoltageDivider. jpg The experiment was carried by using two resistors of values R1 pertain to 5k? and R2 equal to 22k?. The resistors were mounted on the experiment board and the voltage divider circuit was created. The power was supplied using a +6v power supply and the voltages crosswise each of the resistors was calculated using the Agilent 34401 multimeter.The values were recorded and were found to be as follows V1=1. 184 6v V2=4. 89v The total of the voltages adds up to be 6. 0167v which is roughly about 6v ( the sign voltage supplied) which proves that the voltages are within the required tolerance. To compare these measured values to the nominal values which can be found using the voltage divider equation, substitute the values of R1 and R2 and use V as 6v to surface the voltages across each of V1 and V2. v1=6*55+22=1. 11v * V2=6*225+22=4. 88v Nominal values Actual values V1 1. 11v 1. 1846v V2 4. 88v 4. 89v In this experiment it was found that the actual values and the nominal vales were not much different from each other. This could have probably been because of the resistances in the wires or loose connections. But they were some(prenominal) within a tolerance level of 5% which makes the difference insignificant and accountable for experimental error.The outcome of the experiment was that the voltages were shared between the two resistors and the larger resistor got the larger share of the v oltage whereas the smaller resistance got the showed smaller voltage passing through it. This proved the values that we found using the nominal calculations of the voltages. Procedure 3 current measurement. In this experiment, we use the current divider rule which is similar to the voltage divider equation except that the way the circuit is constructed is it is in parallel instead of series.The experiment was set up in the method shown below and the necessary calculations were made. The circuit was constructed as shown in the schematic above and a DC voltage of +6v was passed through it, the currents were measured in each of the resistors and found to be * I1(current across 5k? ) =1. 182A * I2(current across 22k? )=1. 192A (Ps The rest of the rest of the report could not be blameless since the original lab was not completed on time and and so the required information was missing. ) Table of Contents 1. Procedure 1 2. Procedure 2 3. Procedure 3