The purpose of this experiment was to use charged electrodes on conducting paper and voltmeter to discover electric field. The experiment also discovered the relationship between equipotential lines and electric field lines. The purpose of the experiment was to find if the theory that equipotential lines always run perpendicular to electric field lines hold true. The equation used in this experiment is E = ∆V/∆d. The experimental value yielded a result of y = -100x + 10 and the theoretical yielded a -100 V/m.
It was previously mentioned that the focus of this study is to use ceria-zirconia (CeO2-ZrO2) as the catalyst support. The approach of A. Poyraz et al.  to synthesize varying ratios of CeO2-ZrO2 mesoporous materials was modified and used. The modifications were the following: (a) zirconium (IV) oxynitrate hydrate was used instead of zirconium (IV) butoxide; (b) application of the method for the synthesis of CeO2-ZrO2 solid solution; and (c) physical separation of solids (filtration instead of centrifugation). Cerium nitrate hexahydrate (Ce(NO3)3∙6H2O), zirconium (IV) oxynitrate hydrate (ZrO(NO3)2∙xH2O), 1-butanol, nitric acid (HNO3) and P123 surfactant (EO20-PPO70-PEO20) were the required chemicals.
Ohms are measured in Ω, or omega. Voltage is measured in volts, or v. Current is measured in amps, or I. Resistance is measured in ohms, or r. For pipes, voltage would be like the water pressure, current would be like the flow rate, and the resistance would be like the pipe size. The equation to measure voltage is V=IR.A variant of this, Ohm’s law, for measuring resistance, has this
Due to the uniqueness of the Van der Pol oscillator, it has become the cornerstone for studying systems with limit cycle oscillations. It has been used to model the potential across the cell membranes of neurons in the gastric mill circuit of lobsters. Fitzhugh and Nagumo used the model to describe spike generation in giant squid axons. It is also used in the Burridge-Knopoff model that characterizes earthquake faults with viscous friction. In Seismology (study of earthquakes), it has been used to model the two plates in a geological fault.
For all the electrochemical studies, 0.05 M H2SO4 was used as the supporting electrolyte unless specially stated. Graphene oxide (GO) was synthesized from natural graphite by a modified Hummers method [25,26]. Nafion/ER-GO-modified glassy carbon electrode was prepared according to a literature reported procedure
For the AC voltage measurement, experimenter use convenience power outlet as a voltage source. Experimenter repeats the steps from DC voltage measurement except the voltage source no longer has a positive or a negative end so just connect the positive and negative probe to the outlet after setting the VOM to ACV. For the last part of the experiment which is VOM as a DC ammeter, first calculate for the estimated current using the ohm’s law (I=V/R) and use the value to estimate the proper range to set the VOM. Then, experimenter set up the circuit as shown in Figure 1. Then, set the decade resistance box to 750 ohms.
TEM uses electromagnetic lenses rather than glass lenses to focus the electrons into a very thin beam. The electron beam pases through the specimen, depending on the density of the material, out of which some are scattered and disappears from the beam. At the bottom of the microscope the unscattered electrons hit a fluorescent screen, which gives a "shadow image" of the specimen with its different parts displayed in varied darkness depending on their density. The image can be studied directly by the operator or photographed with a camera. The structures of the self assembled particles were studied using Zeiss-Carl (Libra-120) transmission electron microscope at an accelerating voltage of 120 kV.