Please help due by 11:59pm

Exercise 1 Link

https://phet.colorado.edu/sims/html/ohms-law/latest/ohms-law_en.html

Exercise 2 Link

https://phet.colorado.edu/en/simulations/resistance-in-a-wire

Exercise 3 Link

https://phet.colorado.edu/en/simulations/resistance-in-a-wire

Worksheets

PHYSICS SIWLATIDN Dhm's Law and Resistance Simulation Lab {Him 's Law 'When combining the variables of voltage. resistance and current. German physicists Georg Ohm developed le formula: V=IR. where V is the voltage in volts. I is the current in amps. and R is re resistance in Ohms {52). If the resistance is constant over a range of voltage this law can he used to predict the behavior ocl the material. 1llifhether or not a material obeys Ohms law. its resistance cart he described in terms of the resistivity.r p. Resistance and restarts-h}- The component in the resistance which takes into account the nature of the material is the resistivity which is represented by the Greek letter p {rho}. As you will see in this experiment. resistance is linearly.r proportional to the length of the conductor and inversely[ proportional to the cross-sectional area. We can mile the resistance fonnula as l 12:133. where p is the electrical resistivity. i is the length of the conductor and A is the cross-sectional area of the conductor. In this lab. you Trt-'ili use tvvo simulations to complete the experiments. The ttvo simulations are shown in the figures below. Simulation 1 Simulation 2 PHYSICS SIMULAT I DIN Exercise 1 Procedlu'e: 1. Open the Dluns Law simulation with the following link l1tt s: het.coloradoedu'siius html-olnus-law-'latest.olnuslau' e11.l1t111l 2. More the resistance slider to about 368 It. You will keep the resistance set at this value. Do not more the slider again for this part of the experiment. 3. More the slider to {1.5 V. 4. Record the current in 11191 in Data Table 1 below. 5. Repeat the process in increments of 0.5 V making sure you record the current for each increment. Data Table 1 :5. Use Excel to plot your data. (Ifyou do not have access to Excel. you can plot by hand on graph. paper}. Plot current (A) on the Y rods and plot Voltage {V} on the x-axis. Obtain the slope orn Excel {have Excel include linear t equation on graph) or calculate the slope by picking two points on the line and using the equation slope = ill:1. Show calculation on 3 1 graph page. 1'. From Ohm's Law {I = V R) the slope ofjrour g'aph is 159.. What type of relationship is given by the graph? 3. What is the value for the slope? 9. Calculate the resistance 1ralue from the slope. (See '1'. Above) {Ifyour value is considerably.r different than the 368 {'1 value that you used in the simulation. check your 1u1its for cturent) ID. Calculate the \"/9 error between your calculated resistance and the Tralue you used to conduct the simulation: PHYSICS SIMULATION Exercise 2 Pmcedtu'e: 1. 0pm the resistance in a wire simulation with the following link: It s: heteoloradoedn en 'sitnnIation't'esistance-in-a-uine 2. More the resistivity knob to I150 Q cm. 3. More the area knob to 150 31112. 4. More the length to 2 cm and take the measurement of the resistance R. Record the results in table 3 below. 5. Repeat the step above. increasing the length. by 2 cm each time until you have completed all the measunements through 20.00 cm. Lew... Ram-mm Data Table 2 15. Use Microsoft Excel to plot a graph of Resistance rs. Length and have Excel include linear t equation on graph [or construct graph. by hand on graph paper and calculate the slope by hand - make calculation on page with graph). 7". Record your slope. In= 3. From the slope of the line. nd the resistivity p. Remember that R = it; Show all world! I! 9. Calculate the pencent CI'I'Ot' between your resistivityr calculated from the slope and the value you set in the simulation: PHYSICS SIMULATION Exercise 3 Pmcedure: 1. Open the resistance in a wire simulation with the following link: l] s: heteoloradoedu en 'siinulation"resistance-in-a-u'iie 2. Move the resistivity knob to ELSE! 5': cm. 3. More the length knob to Ill cm. 4 . More the area knob to 1 cm'1 and take the measurement of the resistance R. Record die results in table 3 below. 5. Repeat the step above- increasing the area by 2 cm2 each time until you have completed all the measurements through 14.0 cm}. Data Table 3 15. Using Morosoft Excel, plot a graph of Resistance vs. Area. Dr construct graph by hand on graph paper. 'What is the shape of this graph? TI". Using Merosoft Excel. plot a graph of Resistance T5. LA. then fnld the slope. Or construct graph by hand on graph paper. Ill= . 8. Find the nesisti'rit'jur of the wire o. from the slope of the gaph of Resistance vs. 13A. 10. Calculate the percent error between your resistit'j,r calculated from the slope and the value you set in the simulation