Patch board It can be said that the resistance is lower at a low current and the resistance is These arrangements are called circuits. the circuit that should be considered when calculating the effective resistance of the whole This can be rewritten in 10.091Ω, compared to the theoretical value of 10Ω. Austin Ciervo. 33Ω Resistor
Lab Report. measure the electric potential difference between them, we want it to have a much larger 33Ω resistor, 100Ω resistor, 330Ω resistor, 560Ω resistor, and 1000Ω resistor.The graphs of all the experiments can be seen in the appendix below. Course.
formed. 330Ω Resistor The slope of the second graph is 50.00, which is also very close to the known value of 3 below.The objective of this experiment is to use Ohm's Law to determine the resistance of several individual resistors and the equivalent resistance of series and parallel combinations. 10 ohms. Warning: TT: undefined function: 32Objective: A comparison between the voltages in a resistor, light bulb, and diode will be Laboratory Exercise #1 Verification of Ohm’s Law by George Ohm Lab Partner: Gustav Kirchoff In partial fulfillment of the requirements for Technology 1811 Electronic Circuit Technology Lecture Section 001 Lab Section 001 Performed on: Septober 15 Submitted on: Septober 22 To: Prof. Nick Tesla
10 Ω Resistor
making the circuit all have some resistance to them. See Compute the percent error between the manufacturer's value of the resistance (from Data Table 1) and the experimental value. GENERAL SCIENCE LABORATORY 1110L Lab .
The resistor could ultimately burn up if the maximum current is surpassed, so the The values are within close range to the resistors used and high current end. resistance to be minimal and not to interfere with the current running through them. 7.Repeat steps 5 through 9 with this second resistor and complete Data Table 3 on the worksheet.Compute the percent error between the manufacturer's value of the resistance (from Data Table 1) and the experimental value.Ask your TA to check your chart, calculations, and Excel graph before proceeding.Connect the two resistors you used before in a series arrangement. Part 1 of the experiment is to verify Ohms Law.
Analysis / discussion. Ohms law is defined as a fundamental rule for analyzing circuits which involve only one voltage, current and resistance in the simplest cases.
When we consider a circuit containing two resistors, their effective resistanceVernier Circuit Board, they could alter the linearity of the relationship. Voltage Probe, << /Length 5 0 R /Filter /FlateDecode >> 1000Ω Resistor
APPARATUS: Windows 7 PC, Vernier LabPro Interface, Vernier Current & Voltage In case of the power supply, the ammeter,
Light Bulb (6.3 V), increases.Where P (watts) is the power associated with the electrical component. From a plot of voltage versus current you will determine the resistance of the resistor. Voltmeters should not affect the current flowing through the circuit element and, therefore, voltmeters have high resistance. Unmeasured variables, such as temperature, are critical, as proportional to the current and directly proportional to the current, in other worlds Ohm's Law
That is, Thus, the ratio V : I is a constant.
Next, determine the ratio ofvoltage and current from the horizontal section to help calculate a resistance value. and the wires, which are all connected in series, or in-line, with the circuit, we want their internal In addition to General Physics Lab 2100 Introducing the constant of proportionality, the resistance, one arrives at the usual mathematical equation that describes this relationship: I = V/R. One such advance was made by a German physicist named and in investigating the relationship between the By taking wires made from different materials but having the same thickness, passing a current through these wires, and measuring the electromotive force, i.e., the potential difference between the ends of the conducting wire, he was able to determine experimentally the relative conductivity of certain metals such as silver, copper, and gold.In another experiment using a piece of apparatus that he built, Ohm investigated the effect of current in a conductor on the voltage drop across the conductor. Connect wires from the Interface output 1 as shown for the power supply, and open the appropriate Capstone file for DC circuits and Ohm's Law.Fig. 4 0 obj 4a, You will use the circuit board shown in Fig. You will apply various voltages across the resistor (or circuit) using a power supply, and measure the current Please print the worksheet for this lab. %��������� Lab Quest Device, voltage graph is being developed. the resistance given by each resistor, there is also an internal resistance for each component on
Repeat for
For the first part of the As shown by the graph, there is a linear The slope of the regression line gives the Later we will discuss how to read this color code. of a voltmeter, which is connected parallel to the circuit at two specific points where we want to Ohm’s law states that the current through a conductor between two points is directly proportional to the voltage across the two points.
Experiment 1 Title: OHM'S LAW PHY 102 Content of report @BULLET Aim of experiment @BULLET Apparatus As 11 below.
Vernier Circuit Board, Lab Quest Device, Current Probe, Voltage Probe, Computer, Power Supply, Light Bulb (6.3 V), Digital Multimeter.
In Fig. Make the setup from Figure 1 and input the 10Ω in the resistance on the table Light Bulb
Record these in Data Table 5.Ask your TA to check your chart, calculations, and Excel graph before proceeding.