Investigating The Behaviour Of Equipotential And Electric Field Lines Between Two Electrodes

Look at the calibration marks on your ruler to determine the degree of uncertainty and number of significant figures that can be made when measuring with a ruler.

The difficulty comes in the very word measurement which implies some form of numerical logic. If we look at known distance measurements one

The objective of this lab was to observe the behavior of a capacitor while charging through a resistor. Overall, the objective of the lab was achieved since an exponential curve was obtained from a charging capacitor.

\emph{Testing Strategy:} The graph between applied load in the range 0.5 grams to 575.5 grams and change in voltage is plotted. The graph obtained (see Figure~\ref{f:olggraph}) shows the inconsistent readings at many points for different combination of force applied. Also, the best curve equation is close to cubic, which is indication of bad design.\\*

Lab Activity: Log on and go to the PhET website (PhET.colorado.edu) Go to simulations, then “electricity” then to the following:

The present lab report is designed to describe the Thevenin Equivalents and Max Power Transfer. Moreover, the simplification and verification of the circuit network is necessary to identify to Thevenin equivalent. In addition, the maximum level of power transfer was also identified. Thevenin theorem is applied on the DC resistive circuits. The theorem holds that the linear electronic network with the help of the voltage as well as the current sources is important and the level of resistance can be replaced with the equivalent voltage source. To fulfill such objectives, the lab experiment was designed [1].

6) Change the location of the positive charge to at least six widely different distances from the equipotential sensor. Record the voltage reading and distance at each location.

Attending to the average accuracy results, the highest accuracy obtained by the Hassanat distance which achieved the first rank in all noise levels, followed by Lorentzian distance. The Lorentzian distance achieved the second rank only at level noise 10 %, 30%, 40%, 50%, 80% and 90%, but at level noise 20%, 60%, and 80% outperformed by Canberra distance and at level noise 40 %, it outperformed by Manhattan distance, where these distances, Canberra and Manhattan achieved the second rank in theses level of noise. The Canberra distance achieved the third rank at a level of noise 80% and 50%, 40%, 30% and 10 %. This distance at level noise 10 % was equivalent to the Square chi-square distance in the result. At a level of noise 90%, the

so that the conductometric data were treated by Fuoss–Shedlovsky method [11] by using a computer program, to evaluate the ion-pair association constants of the studied salts and to re-evaluate the limiting molar conductance (Λ0), where they proposed the following equation:

Therefore, a theoretical uncertainty value that accommodates both uncertainties of the measurement and the equipment is calculated. The theoretical uncertainty calculation is primarily based on the propagation of error formula. The theoretical uncertainty calculation is as follows.

Figure.10 (a) Hardware test bench set up (b) Gating pulses for 70 KHz from DSP processor (c) Input voltage and input current waveforms for 230Vrms (d) Input voltage and input current waveforms for 110 Vrms

Most flat objects do not consist of uncertainty. When we measured round objects, because of its shape, it contained uncertainty.

The assistant records the distance between the bottom of the ruler (the zero-centimetre mark) and the top of the thumb where the ruler has been caught in metres.

We placed the cylinders at opposite ends of the paper, when we should have placed them much closer together. Though the equipotential lines still appeared as they should have, it may have been more accurate if they were closer together. -For the third experiment, we used two conductive metal rectangles. This experiment produced a result that was similar to the last experiment, vertical equipotential surface lines and horizontal from one rectangle to the other, electric field

Background Students had been taught ‘Electrochemistry’ as outlined in the IB Chemistry syllabus. Investigation Design an experiment that allows you to investigate a variable affecting the rate of electroplating. Your research question must be focussed and specific and must enable you to carry out your experiment safely and within the allocated time. Safety Show your research question to your teacher. Complete a safety hazard assessment before writing a full plan (a + b). Ensure your teacher approves this. Experiment If your plan is safe you will be allowed