This is similar to the Objectives section list in the lab instruction. Strategy and Solution for b To find the drop in , we note that the full current flows through. We give the elements in this circuit some simple values for the purpose of better description and explanation. The percent errors for current and voltage are very low. Refer to and the discussion of lights dimming when a heavy appliance comes on. Also, we studied the current flow and voltage in series and parallel.
Electric current, Electrical impedance, Electrical resistance 1219 Words 5 Pages Devices and Measurements Lab 3 Current and Voltage This report was prepared by: L. Each error factual, grammatical, typographical. In parallel there are multiple paths. We can consider to be the resistance of wires leading to and. Circuits carry electric current when they are in a closed loop, and can act differently depending on the physical set up of the circuit. Archimedes, Force, Fundamental physics concepts 1421 Words 5 Pages Post lab 4.
Power distribution systems most often use parallel connections to supply the myriad devices served with the same voltage and to allow them to operate independently. Description of Apparatus: To build our series circuit, we connected a power supply to three different resistors using clips and wires. Apparatus: Metre rule with holes drilled at the 25cm, 50cm and 75cm mark, 50g masses 50mm long bolt with a diameter of approximately 5mm, retort stand, boss head and clamp, 0-10 N spring balance, electronic pan balance ,wire or string for suspending masses from the metre rule, two bulldog clips. We measured the current and potential differences across the resistors on each circuit. After setting up the closed circuits we want to test our own results into the equations. We do not want the plates to be touching, because then we would only have a conductor. Similarly, you can see the passenger compartment light dim when you start the engine of your car although this may be due to resistance inside the battery itself.
Conservation of charge implies that the total current produced by the source is the sum of these currents: This relationship results in a total resistance that is less than the smallest of the individual resistances. The most common place you will encounter electric circuits is across them. Color, Electromagnetic radiation, Emission spectroscopy 349 Words 2 Pages Now You See It — Copper Cycle Lab The purpose of the lab is to discover what happens when someone executes a series of procedures, beginning with copper metal. Mechanical, computer and other engineering disciplines will. The insulator between the plates is also known as the dialectic, which affect how the. The positions for attaching the voltmeter are shown. There are two types of circuit's Parallel circuit, and Series circuit.
Engineering requires theory to develop and test constraints while also requiring practical application of theory in order to determine tolerance and practical results for industry purposes. In a parallel circuit, the current varies across each resistor and the potential difference remains the same throughout the circuit. In the second part of the experiment our aim is to see the operation of. This increased current causes a larger drop in the wires represented by , reducing the voltage across the light bulb which is , which then dims noticeably. For each of the three series circuits, compare the experimental results with the resistance calculated using the rule for calculating equivalent resistance outlined in the Theory section. Series and parallel circuits function differently. This gives a theoretical R eq range of 19.
As measured, the total voltage in series circuit is equal to the sum of V1 and V2 which support the common knowledege that in series circuit the voltage decrease as the electric flows through the resistors. Non-ohmic resistors are also referred. The sum of these voltages equals the voltage output of the source; that is, Connections: Conservation Laws The derivations of the expressions for series and parallel resistance are based on the laws of conservation of energy and conservation of charge, which state that total charge and total energy are constant in any process. Take a moment to look over the site and find all the different materials. In a semiconductor, resistance will decrease as temperature increases. The three resistors were more vertically stacked than in a line. Note: The voltmeter and ammeter will be moved during the experiment.
A series circuit proves the opposite; current remains constant, and the voltages being used at different. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Introduction In a lab today, I am to identify an unknown bacterium that is. Halides,such as Cl-, Br-, and I- will be used to make these determinations. When lamps are in series, they have the same current, so they are of equal brightness.
Alternating current, Ammeter, Direct current 267 Words 2 Pages Lab Report: Halogen Reactions Purpose: This experiment will allow for exploration into some of the properties of Group 17 elements halogens and their compounds. The project began by assigning each participant with a sheet that contained the voltages at each node, the current, and the source voltage value. The sum of these potential differences is equal to the total potential difference across the circuit. Scientific method 1210 Words 5 Pages conducted in series and parallel to identify the pressure different in both pumps. A measure of this limit on charge flow is called resistance.
As you progress further in science, you will see variations in styles of lab reports, though they all contain the same basic principles. There are several parts to this experiment, where resistors are set up as parallel, series or both. Error, Mathematics 757 Words 4 Pages of the main hazards of using inductances is electrical energy stored in the magnetic field. The meters were positioned first to measure the voltage of the power supply and the total current flowing into the circuit. The current flow through each resistor is equal.
First, remove the light bulbs from the system. Examine the results of Part 2. Electronic laboratory practice Abstract: The aim of this laboratory was to make us familiar with how to use the different types of electronic equipment and how to accurately use them to make measurements. If such a string operates on 120 V and has 39 remaining identical bulbs, what is then the operating voltage of each? In parallel circuits, each independent path experiences the same voltage drop. Since the maximum percent difference was -0. The smaller resistor had the largest current going through it because current prefers to go through the path of least resistance. Introduction I am going to design an electric circuit for a Doctor's surgery.