Experiment EC1: DC CircuitsIn this experiment you will accomplish the following tasks:1) Determine the resistance of resistors by using Ohm’s law after measuring voltage and current.2) Determine the resistance of an Ohmic conductor (resistor) by a least square fit of voltage and current data.3) Measure voltage and current for a non-Ohmic conductor (silicon diode). 4) Determine the resistance of resistors wired in series.5) Determine the resistance of resistors wired in parallelV-1Assemble the circuit shown above. The DMM is used to measure voltage. Set R1to 30  For each resistor do the following:Set current I between about 0.01 and 0.04 Amperes. Record I and I, voltage V and V.Disconnect the unknown resistor and the DMM from the circuit.Measure the resistance using the DMM.SectionVI-1 of the reportTabulate the data from V-1. Iis determined as it was in EC0, Vis ± the last digit (least count) of the DMM.Using I , I, V and V. determine and report R ±Rfor all four unknown resistors. Compare these to the values of R as measured by the DMM. Do the values agree?VRIResistance R is defined as:V-2Using the circuit from V-1, pick one of the unknown resistors and do the following:Set I to about 0.005 Amperes. Record I and V. Do this for a total of5 values of I.SectionVI-2 of the reportTabulate the data from V-2. Then plot V vs I. Comparing Ohm’s lawto the slope-intercept form of a line shows:The plot of V vs. I should be a straight line with slope s = R and intercept b = 0. Use LINEST in Excel to determine s ±sand from these determine and report R ±Rysxb VIR Assemble the circuit shown at right. Set R1to 30 Set V to 0.20 Volts. Record I. Repeat this for the voltages listed on your data sheets in the manual.V-3SectionVI-3 of the reportTabulate the data from V-3. Then plot V vs I. Determine R for V = 0.60, 0.65 and 0.70 Volts.Is the diode an Ohmic conductor? Why or why not?V-4Wire all four unknown resistors together in series as shown in the figure.Record current I and I, voltage V and V. While keeping the four resistors wired in series, disconnect the entire network of resistors from the circuit and measure the combined series resistance with the DMM.SectionVI-4 of the reportUsing I,I, V and V. from step V-4, determine and report R ±RUse the calculated values of R ±Rfor each resistor from VI-1 to determine and report the expected value for the series arrangement of resistors.For resistors wired in series, Finally, compare these two values to the DMM result.SABCDRRRRRV-5Wire all four unknown resistors together in parallel as shown in the figure.Record current I and I, voltage V and V. While keeping the four resistors wired in parallel, disconnect the entire network of resistors from the circuit and measure the combined parallel resistance with the DMM.SectionVI-5 of the reportUsing I,I, V and V. from step V-5, determine and report R ±RUse the calculated values of R ±Rfor each resistor from VI-1 to determine and report the expected value for the parallel arrangement of resistors.For resistors wired in parallel, Finally, compare these two values to the DMM