Select 5 resistors of different magnitudes from a resistorkit. Read and also document the nominal worth utilizing the table on the backof the kit (incorporate tolerance). Measure and document each via theDMM and document both the nominal and the measured values in tabledevelop in your notebook.
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1. Select a 1k ¼ W resistor and also meacertain the resistance with the DMM.Repeat the measurement via your myDAQ using the ELVIS DMM. Recordboth worths and comment on any distinctions in reading.
2. Connect the Rigol power supply +25 volt output across the 1kresistor. Make certain that the OCP and OVP are off.
3. Calculate the maximum permitted voltage based upon the power rating ofthe resistor.
4. Step the voltage output of the +25 V supply from 0 V, in procedures of1.0 V, to the limiting worth calculated previously. Let the currentstabilize at each voltage establishing before taking the readings. Ateach step document the values of V (Volts), I (Amps) and P (Watts) asshown on the power supply. Use the DMM to provide a secondmeasurement of the voltage across the resistor. Select by pressingDCV. Record all values in a table in your laboratory notebook intable create.
Experiment 3: Measuring Current with the DMMAmmeter
1. Select a 220 ohm, ¼ watt resistor and meacertain and record its actualresistance. Calculate the maximum enabled voltage for the ¼ wattpower limit
3. Set the DMM range to meacertain DCI and collection the range for 100 mA fullscale utilizing the up/dvery own variety tricks .
4. Set the power supply for 1.00 V and measure present using both thepower supply and also DMM. Record all values.
5. Increase the voltage in steps of 1.0 volts and document both currentvalues. Continue to increase the voltage until maximum allowedvoltage is got to. Record all values in table create in yournotebook.
Connect a 220 , ¼ watt resistor as presented in Figure Ex-4.Calculate the maximum enabled voltage for the ¼ watt power limit.Record the worth in your notebook. Set the power resource for thisvalue and also record the current and power worths. Using the IR gunoffered, measure the temperature of the resistor.
Construct the circuit in Figure Ex-5 above using a 47 µFcapacitor. A 330 k resistor is supplied for R1, and also a 220 resistoris offered for R2. Measure and document the actual worths. Calculate thetime constant (Add R1 and R2 to gain the resistance value for thetime constant).
2. Turn on the power supply and collection to 10 volts. Take a reading of thevoltage. This is Vo, since it represents an uncharged capacitor.Then disattach the DMM
4. Begin by measuring the voltage and also present charge prodocuments of thecapacitor. Rerelocate the jumper and also collect data in a paper usingLabcheck out.
5. The following step is to meacertain the dischargeprice of the capacitor via the resistor. Rerelocate the power supplyand also area the jumper throughout points 3 and 4. Placement of the jumperconstitutes t =0 as it creates a discharge route. Continue recordinginformation until the capacitor is discharged.
6. Relocation the 330 k resistor with a 100 kresistor and also repeat procedures 1 via 5.
7. Rearea the 100 k resistor with a 1 M resistor and also repeat actions 1via 5. Throughout this time, utilizing a sheight watch, meacertain thevoltage charge profile from readings on the DMM. Record in tabledevelop in your notebook.
Blog post Questions
Compare the nominal and also measuredresistance worths. Calculate the percent variance. Do the varianceslie within the shown error band also values? Take any 2 of theseresistors and produce a voltage divider in Multisim using thenominal value. Use one 10 volt source. Measure the center tapvoltage. Switch to the actual values of the resistors andre-measure the center tap voltage. Comment on the distinction.
Plot V as a role of I utilizing Excel.Calculate the slope of the line, this is the resistance. How doesthis worth compare through the direct DMM reading and also the nominalvalue? Discuss the differences. Take right into account the toleranceworth of the resistor. Perform a percentage error calculation forthe resistor worths.
Plot V as a duty of I making use of Excel.Calculate the slope of the line, this is the resistance. How doesthis worth compare through the direct DMM reading and also the nominalvalue? Discuss the distinctions. Take into account the toleranceworth of the resistor. Perform a percent error calculation forthe resistor worths.
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Plot the resistor temperature as afunction of power via the resistor. Discuss your findings. Isthe plot linear?
Place the recorded Labcheck out data inExcel and plot the charge and also discharge voltage propapers. Using thetrendline energy in Excel, fit each curve. (Be certain to indicatethat you want the equation displayed). The coreliable of theexponent is the time consistent of the circuit. Compare this valuewith each time consistent calculated utilizing the components. Discussany type of distinctions. Does Labcheck out carry out an advantage over collectingdata by hand? Exsimple.