Protection of Impact Electromagnetic Radiation on Public Health and Environment, Indonesia

A penetration of SUTET trajectory in residential areas, causing public health problems and environmental problems. Development of the electrical energy sector, regulation the increasing electricity demand. Distribution electricity from inter-GI generating centers requires SUTET in the air with a voltage above 245kV. The community assesses health impact that operates mostly with the voltage of 500 kV, >1000mA/m2, can cause heart problems, extrasystole rhythms, and ventricular fibrillation Electrical sensitivity. A simple method and integrating the divergence shift flux density a radiation point, a method proposed from Strokes theorem relates the closed line integral vector field to curl surface integral and divergence theorem which relates the surface integral a closed vector field to integral volume and divergence vector field, this experiment electric field produced by the line charge is directed radially away from the line charge, so the direction lines electric field(E), and equipotential surfaces perpendicular to each other. This study is a collection of symptoms hypersensitivity, comprehensively, and a potential difference between two points in the electric field, which has the performance of charge unity in responding to charge from both points the area, the solution is environmental-based management. Ionizing radiation is the dispersion or emission energy when through a medium, absorption process occurs, and radiation energy beam does not induce, results in vector potential having magnitude is inversely proportional the radial distance from the element which is similar to inverse distance dependence scalar potential. In conclusion, take steps to empower the community for residents in the area SUTET.

Visuo-Haptic Simulations to Understand the Dependence of Electric Forces on Distance

In this paper, the potential of visuo-haptic simulators to help engineering students to understand the nature of electric forces between different electric charge distributions is addressed. Three visuo-haptic simulators were designed to perceive the attractive–repulsive behavior as well as the dependence on distance of electrical forces for: (a) point charge, (b) line charge, and (c) plane charge. Design elements were incorporated to improve the 3D perception of the simulators. A sample of N = 111 engineering students practiced with the simulators: 87 enrolled in an Electricity and Magnetism course and 24 enrolled in a more advanced Electromagnetic Fields course. Pre-test and Post-test were applied before and after working with the simulators and average learning gains were obtained. t-tests were performed to determine the statistical significance of the results. Significant learning gains were obtained for the comprehension of the force dependence in the case of line charge and plane charge, but not for the point charge, due to the fact that most students started with very high Pre-test scores in this last case. These results suggest that the use of visuo-haptic simulators may help students to better identify the dependence of electric forces on distance. It was also observed that the potential effect of improving the recognition of electric interactions was higher among students with lower previous familiarity with these topics, as compared to more advanced students. Through exit surveys, it was found that the students liked very much the haptic activity and that it sparked their interest in learning new physical concepts.

A note on the two-dimensional electrostatic field produced by a line charge near a dielectric wedge

Summary We shall consider the problem of determining the correct electrostatic field produced when an infinite two-dimensional line source is influenced by an adjacent infinite dielectric wedge. This result corrects a number of previous attempts at this problem, which are shown to be in error. The method avoids using the Mellin transform which has lead to some of these earlier errors. The method is used to solve a more general problem of the electrostatic field produced by an arbitrary number of line sources located in an arbitrary number of contiguous dielectric wedges.