Experiment I Simple Voltage and Current Measurement Objective The objective of this experiment was to measure the Voltage and Current. Upon completion of this experiment I was able to: 1) Set the DC power supply to a specific voltage. 2) Properly connect the voltmeter to measure voltage. 3) Measure current with the ammeter. 4) Measure resistance with the ohmmeter. 5) Determine the accuracy of a given meter reading. Theory The theory required for this experiment was
Voltage stability is defined as the ability of a system to restore steady voltages at all buses in the power system after being exposed by any disturbance from a given initial operating conditions. Voltage stability purely depends on the capability to maintain equilibrium between load supply and load demand from the consumer end. When there will be any progressive fall or rise of voltages of some buses that can cause instability. Power system stability is expressed by the capability of a power system
ELECTROCHEMICAL CELLS Purpose: In this experiment, several different half-cells will be prepared and connected to find the voltages generated. Also, the concentration will be change in one of the solutions to see how this affects the cell potential. Thirdly, the electrical potential of a cell containing silver and silver chloride will be measured. Lastly, a cell containing copper (II) and ammonia will be constructed. The potential and the Nernst equation will be used to calculate the formation
Establishing the Current-Voltage Relationship For a Metal Conductor Investigation- To Establish The Current- Voltage Relationship For A Metal Conductor. In this experiment I will be investigating the current- voltage relationship for a metal conductor. The variables that I need to keep constant in this experiment are: 1. Thickness of the wire. 2. Length of the wire 3. Input of voltage coming from the power supply should be kept constant. 4. Temperature of wire should be
Varying the Voltage Across a Fixed Value Resistor For my project I am going to investigate the affects that occur when varying the voltage across a fixed value resistor. I will observe things that will happen. I will look at a variety of possibilities, and hopefully I will find out what happens when the voltage is changed. Planning ======== Things the voltage may effect when varied are: Current Heat Resistance I have decided to change the voltage and measure the current
if there is enough electricity to power each and every light. Throughout this paper, we examine Kirchhoff’s Voltage Law the sum of the electrical potential differences around any closed network is zero [1]. Represented by the equation ΣV=0, which means v1+ v2+ v3+…+ vn=0 [2]. A way at looking at this equation in words is by the sum of the voltage rises in the loop will equal the sum of voltage drops in the loop [2]. By applying this principle electrical engineers can use this to determine if there
An Investigation Into the Factors Affecting the Voltage Output of a Solar Cell My aim is to try and find out how much the voltage is affected when exposing different sized areas of a solar cell to a light source. From this I will also establish the energy of each photon and approximately, the number of freed electrons, which can make an electric current flow. I know that light consists of packets or quanta of energy called photons. When electromagnetic radiation such as light shines on
The Effect of Voltage on a Current Through a Filament Lamp Equipment: · Power Supply. (Ranging from 0V to 6V). · Variable Resistor. · Ammeter. · Voltmeter. · 6V Filament Lamp. · 7 Wires. Definitions: Ammeter - This is a device that measures the current of electrons in Amps. It has to be placed in Series on the circuit. Voltmeter -
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
Investigating Which Metal Combination Gives Out the Most Voltage in a Solution Background Metals are an order of chemical elements in the periodic table. They are arranged in atomic number. All of them are solid (apart from mercury), good thermal and electrical conductors and are shiny when polished. Metals and non - metals are separated in the table by a diagonal line. -------------------------------------------------------------------- The reactivity series is a table to show
whether the voltage affects the amount of gas produced during the electrolysis of sodium chloride solution. Prediction: I think that hydrogen gas will be produced due to the half equation 2H +2e àH this will be produced at the cathode because opposites attract and the hydrogen ions are positive. At the anode I think that chlorine will be produced due to the half equation 2CL -2e àCL the chlorine ions are negative so they are attracted to the positive electrode. I also think that as the voltage is increased
Which two metals combined together give the higher voltage when reacting with acid Introduction In this investigation we will find out which two metals combined together give the higher voltage when reacting with acid. The metals used will be: · Aluminium · Zinc · Iron · Tin · Lead · Nickel · Copper To make a prediction on what metals will be the ones that give the highest voltage when combined together you need to find out if the position in which the metals are at in the reactivity series
oscilloscope. Calculate the voltage amplitude from the amplifier from the minimum and maximum settings. Calculate the gain in decibels. Task 2 Modulate the laser using the transformer. Turn on amplifier circuit. Point laser towards the photo resistor. Connect to the oscilloscope. Adjust the amplifier until you can hear the signal generator signal. Task 3 Connect oscilloscope to amplifier. Modulate laser as before. Point laser towards photo detector. Perform measurements of voltage output for different
resistance. As the potential difference (voltage) between the ends of conductor is increased the current passing through it increases. If the temperature of the conductor doesn't change, the current that flows is proportional to the voltage applied. This is called Ohms Law. Ohms Law= Potential Difference x Current or Potential Difference = resistance x current or The unit of resistance is measured in Ohms (W). Measuring Resistance The voltage across the resistor is measured using
on the LDR (Light Dependant Resistor) affects the Resistance. We can change the intensity using different methods. One method is to increase the voltage, by plugging the power supply to a higher voltage. But this method can be hard as you might not be able to know how higher the voltage is, it might be harder to have access to higher voltage, as it is dangerous. Another way is to change the brightness by adjusting the power supply. Also the distance between the bulb and the LDR is another
of electrons round the circuit. Ohm's law states that the voltage is equal to the current multiplied by the resistance - V=IR This can be re-arranged to say R=V/I. Ohms law states that in a metal component the ratio of voltage to current remain constant, meaning that the resistance stays the same as long as the temperature remains the
wire ================================================= In this experiment we used a meter stick with wire running down it to measure the resistance at different distances to decide whether resistance increases over distance. We changed the voltage or potential difference 10 times at each length, but in the results table and graph I have only used the first result from each measurement. APPARATUS Meter stick mounted with wire 1 Ammeter 1 Voltmeter Wire 1 Variable resistor
localized in such devices as lamps, heaters and resistors in which it predominates, although it is a characteristic of every part of a circuit, including connecting wires and electric transmission lines. In circuits where the current (I) and voltage (V) are related by a simple proportionality constant, as in OHM'S LAW, V = RI, the proportionality constant R is the resistance of the circuit. This discovery was made by Georg Simon Ohm (1787-1854), a German physicist, therefore, Ohm is the
with his and the voltmeter I will be able to work put resistance (R=V/I). As a safety consideration I will keep the Current under 0.5 amps, so the wire doesn't get too hot. · Rheostat- So I can vary the voltage in the circuit to take two readings for each wire at different voltages, I will work out an average of the two to reduce the margin of error. · Switch- A safety consideration, so the wire doesn't overheat and burn if the circuit is left on for too long. I have decided to test
current around the circuit, so the longer the wire, the higher the current. I can check the voltage, current and resistance to prove that my hypothesis is correct by using ohms law which is V=I*R (V=volts, I=amps and R = resistance). I can re-arrange this formula to find the resistance by saying R=V/I, so when I record my results, I should divide the volts by the current to give me the resistance. The voltage and the resistance are directly proportional. Equipment: A voltammeter. An ammeter