Accuracy is of primary importance in an experimental work. The tolerance quoted by the meter manufacturer allows us to calculate the accuracy of any reading taken with that particular meter. For example, assume that the dc voltage scale on a particular multimeter is rated at ± 3% of full scale. This means that a reading on the 10V scale is accurate to (± 0.03%)(10) = ± 0.3V. Thus, a reading of 9V on the10V scale indicates a true voltage, which lies between 8.7 and 9.3 V. A reading of 1V on the scale would
In my science fair experiment I plan to measure the difference in electrolytes in orange juice and a sports drink. In order to test this I will use a multimeter. I think that people who are working out to their full potential will find it more useful to drink sports drinks after their workout. I believe this because my research shows that the harder you work out the more salts your body loses, sports drinks
essential things are: • Digital multimeter/ ammeter • Alligator clip leads • Copper wire, bare, 24-gauge (1.5 meters) • 9 V
Copper Sulfate of Varying Molarity Substance Multimeter Measurement (mV) 0.001 M Cu+2/Cu and 1.0 M Cu+2/Cu 80 Oxidation Reaction: (0.001 M) Cu → Cu2+ + 2e – Reduction Reaction (1M) Cu+2 + 2e-→ Cu Percent Error: (88mV-80mV)/88mV=9.1% Nernst Equation: Ecell= EO cell – (.0592/n) x log (Q) Q = log (.001M/1.0M)= -3 N=2 Theoretical Ecell= 0 Ecell= 88 mV Lab 10C: Reduction Potential Measurements of Copper and Zinc Concentration of CuSO4 Multimeter Measurement (mV) -Log(Concentration) 0
is how I will set up the apparatus. Below is a circuit diagram. The set up of the circuit is simple as shown above. The 12-volt lamp is set up in a simple circuit. Then in a SEPARATE circuit, the light dependent resistor is connected to the Multimeter, which shows the resistance readings. If I did connect the LDR in the same circuit, I would almost certainly fry the LDR, and ruin the experiment! I want to keep the distance from the lamp to the LDR the same. I have decided after testing the
Thermistor Investigation Aim: For this experiment I am going to investigate the variation of the resistance of a thermistor with different temperatures. The resistance will be tested at approximately every 10 degrees, with a range from 80 C down to 30 C, and these results will be recorded. After recording the results, the experiment will be repeated at a total of 3 times, this is so we can get an average that should be correct and accurate. Scientific Knowledge: Thermistors are thermally
An Investigation To Show How the Voltage Affects the Current In a Light Bulb Aim:~ An investigation to show how the voltage affects the current flowing through a light bulb. Hypothesis:~ I predict that as the current increases the voltage of the lamp will also increase; thus causing the resitance to decrease. I think this because of Ohm's Law which states that current will increase in proportion to voltage; if the current is doubled the voltage is also doubled. Bearing this in mind
Another thing I decided was to use digital multimeters because they give more accurate results- to 2dp- and can measure both the current and voltage on the same instrument. The ranges of lengths I will be using for my final investigation are: 0.2m, 0.4m, 0.6m, 0.8m and 1.0m. Fair Testing: The variable I am testing for this investigation is the length of the wire I will be using. v I will be keeping the following things the same: Multimeters,
Computer support specialist help people with trouble they are having such as software, hardware, and equipment trouble. There are many ways that they can assist people with their troubles they are having. Some computer support specialist offer services such as help desk service, in home service, and in store help. The computer support specialists are always needed. I am going to tell you about the computer support specialist career field. A computer support specialist has many responsibilities. A
Introduction So as a user who just built a computer, I used a full size ATX motherboard with 2 DDR3 4GB cards, Intel i7-4940MX 64 bit, AMD Radeon R9 graphics card. I tried turning my computer on and nothing happens. The fan comes on for a brief second then shuts off. I should also say that when I hit the power button no LEDs come on. There are also no beeps when I hit the power button. And finally the screen does not come on as well. I have made sure all the plugs in the back are in the right jack
Table 3.1, located below, shows the battery voltage at the beginning of the lab. Table 3.1: Battery Pack Functional Test Measured (V) Expected Initial Battery Voltage 9.540 9-10 VDC The initial battery voltage was recorded as 9.540 volts, a number greater than 9.00 volts, indicating that the battery was almost fully charged. Table 3.2, located below, shows the battery pack characterization. The table shows the voltage of the battery and the current through the battery as a function of time.
hate you,” “You’re a stupid-,“ freak, and then a business executive Spartan kicks his monitor off of his desk in a rage. We transition into the server room for the entire internet, where the network administrator is checking something with his Multimeter and drinking a glass coke. He sets the coke down on a server, and it spills onto the hardware, sending all of these “coke is good” feelings into the internet. The coke feelings infiltrate everyone’s media devices, changing what they are looking
output are different. The test checks that the switch will last for the duration of its life. The manual horn efforts is, as well, in the same family of the horn and horn/switch cycling the only change is the equipment. A caliper, force gauge, and a multimeter is used and the movement is done by hand. This test checks the same part as the horn
Bleach can be used to remove color from another substance or clean the water that we, humans, drink everyday. Even though bleach is very helpful and commonly used in our environment, it is also very reactive and unstable if it is not used correctly. For my experiment, I will be making an electronic device that will function as a colorimeter. Using the colorimeter, I will measure the concentration of blue dye in sports drinks, and find the rate at which blue dye disappears when it is mixed with bleach
European art music are based upon the following features: 1. Narrow-ranging, dynamically restrained modal melodies are played in a variety of tuning temperaments that generate an "illogical" modal harmonic succession. 2. An unrestricted range of multimeters, polymeters, and complex rhythms are used. 3. A texture of two or more independent and equally important melodies accompany one another (i.e., polyphony). 4. The formal construction is often vague and unclear. 5. The instrumentarium is unrestricted
Different Concentrations of Sodium Chloride Solutions and its Affect on Electrical Conductivity Introduction Electrical conductivity refers to a substances ability to carry moving electrons (conduct electricity). In order to do so, there must be a supply of delocalised electrons. While in a solid state, ionic substances can not conduct electricity as there are no delocalised electrons or free/mobile ions to act as charge carriers. In an aqueous ionic solution, the H2O molecules break apart the crystal
My hypothesis is that orange juice would be better then Gatorade, because I believe that it would hold more electrolytes. Some material that I will need to figure this out is Digital multimeter, Alligator clip leads, Copper wire, bare, 24-gauge, 9 V battery, 9 V battery clip, and more. I am going test each liquid to see which liquid has more electrolytes, and by knowing that it will help me find out which is better for you. I believe by
The Relationship Between Length, Width and Resistance of a Wire Aim: To investigate how the length and width of a wire affects the resistance of the wire. What is resistance? Electricity is conducted through a conductor, in this case wire, by means of free electrons. The number of free electrons depends on the material and more free electrons means a better conductor, i.e. gold has less resistance. For example, gold has more free electrons than iron and, as a result, it is a better
I believe electrical engineering students should be thought how to think like an engineer. They should be able to consider practical limitations in solving real life problems. Whenever they face a new problem they should be able to split that problem into smaller parts that are manageable. For each sub-problem, they should have the ability to choose a suitable model that considers the physical, computational, safety and time constraints. Completing an engineering project is not possible without
This Alternative Energy STEM project was designed not only for our group to do in depth research in alternative energy, but to spark our interest in a new kind of science and to practice the important life skill of working in a group. Our experiment was based on a simple question: which is most efficient: a hydrogen fuel cell, a battery, or a solar panel? We hypothesized that of the three energy resources we would test, the battery would be the most efficient, powerful, and quick, due to the fact