I initially performed this experiment in the Lab, compensating for the amount of background light by measuring light intensity before turning the bulb on and subtracting this value from the voltage reading after the light was turned on. Current and resistance — physics.
Build circuits with resistors, light bulbs, batteries, and switches. For a bulb of Watts I obtained an average reading of 1. Each title falls into a specific category some of these are adventure, thriller, fantasy, action or education.
However, it is not true to say that the resistance of the LDR is affected by light intensity only. However I realised that as there were large windows in the laboratory, the background amount of light would never be the same from one minute to the next.
When light strikes an electron, enough energy can be transferred so that it has enough energy to move to a free outer shell i. I thought that the voltage across the LDR was directly proportional to the intensity of light falling on it solely. Roles and responsibilities of data users In order to successfully gather data from the users, conducting an interview must be a good idea.
Hence that may insufficient as users may not able to describe everything by themselves as the ideal meaning may not portrays only by words. Imagine we are thinking of a non-quantum explanation for why the voltage across the LDR varies. This inaccurate theory taken into account let us then examine two of my results.
The more photons there are the more electrons will be struck. Exploring Simple Electric Circuits what is the resistance of the bulb at that point?
To collect the data together there will need to be a data sheet designed. Physics by Inquiry, Vol 2; electric circuits — Light bulbs in Series — Physics Stack In physics we were learning about how that the resistance of the light bulb depends on than if there was just one bulb on there.
The non-quantum theory I mentioned above had to be discarded, as based upon this explanation, the voltage should double every time the light intensity doubles.
Recently i have been assigned my coursework on measuring the resistance of a filament lamp whereby an experiment was carried out by increasing the voltage through the filament lamp in intervals of 0.
Either there was a gigantic margin for error a point I will discuss in my evaluation or the Quantum explanation I have given for the behaviour of the LDR was true i. To this end I decided to perform the experiment in a darkroom to minimise any extraneous light so only the light intensity of the bulb in question would be measured.
In this way we can see how light intensity can affect the voltage. There are others All titles are loan only to registered members of Moving Images. In this case, the charge carriers are electrons. In order to remove this margin of error from the experiment, I placed the clamp directly above the LDR with the bulb facing downwards.
It necessary to solve these problems and try to bring the system of the basic system and improve to be more efficient and more reliable in a working area.
It is only reasonable to say that as the current through the circuit increases, so too will the voltage across the LDR.An investigation into the theory of resistance Essay. A+. Pages:3 Words This is just a sample.
We will write a custom essay sample on An investigation into the theory of resistance specifically for you. for only $ $ An investigation into the characteristics of a filament bulb ; Investigation to find out how tension ; Sorry.
We Will Write A Custom Essay Sample On Resistance of an LDR FOR YOU For Only $/page. However I realised that as there were large windows in the laboratory, the background amount of light would never be the same from one minute to the next.
An investigation into Resistance ; The resistance is halved ; Essay Samples. The enzyme. For example the filament of a light bulb generates a lot of resistance in that section of the circuit and so Ohm x27;s Law as a Predictor of Current – A student of Physics has written such formulas down so many electric shock (unless of course, 3 Volts and uses a bulb with a resistance of 60 Ω will have Resistance of a tungsten filament bulb.
First of all I did some research because to answer the question 'Is A Filament Bulb an Ohmic Resistor' I needed to know what an ohmic resistor was. an experiment to determine the EMF and Internal Resistance of a standard laboratory power pack.
Introduction Aim This is an investigation into how temperature affects the amount of. The Importance of the Federal Bureau of Investigations Laboratory. Topics: Federal The purpose of the Bureau of Investigation was to investigate the crimes "of national banking, Laboratory Investigation into the Resistance of a Filament Bulb Essay 5/2/ Aim: Does the resistance of a filament bulb change as the bulb gets.
Laboratory Investigation into the Resistance of a Filament Bulb Essay by lidinglight, High School, 10th grade, B, January download word file, 2 pages download word file, 2 pages 0 votes.Download