Understanding Of Electric Fields Research Articles

Students’ understanding of electric fields in the context of multiple representation

This study aims to describe physics students’ understanding of the concept of electric fields through a multi-representation review in a qualitative way. This research is a qualitative research using test and interview techniques to obtain the data. The research subjects consisted of 6 students from Physics Education department. The test used is an essay test which includes indicators of translation, interpretation and extrapolation on the concept of an electric field. The more in-depth interviews with respondents related to the concept of the electric field were carried out in this study. Based on data analysis, it can be concluded that students’ conceptual understanding is in the moderate category. The highest scores obtained are in translation, interpretation, and extrapolation respectively, which show that the level of indicator complexity affects student achievement. This research implies that the poor conceptual understanding of students on extrapolation indicators caused by the lack of creativity in students’ thinking in exploring the whole information presented on a particular issue. Thus, a learning method that priorities high-level critical thinking skills is extremely needed.

Electric Field and Voltage Distribution (EFVD) Analysis for 132kV Bushing Transformer Using Finite Element Analysis

The electric field and voltage distribution (EFVD) are an important parameter for assessing high voltage bushing transformer performance. In order to understand how EFVD being distributed along the bushing transformer, Finite Element Method (FEM) has been employed for simulation purposed. 2 dimensional (2D) object designed using Computer Aided Design (CAD) using actual dimension of 145kV bushing transformer from manufacturer data sheet. The model is then exported to Finite Element Method (FEM) software for further analysis. Using FEM, the EFVD can be obtained. From this study, an understanding of electric field and voltage distribution along bushing transformer and between aluminium foils are attained.

3D-Printable Model of a Particle Trap: Development and Use in the Physics Classroom

Quadrupole ion traps are modern and versatile research tools used in mass spectrometers, in atomic frequency and time standards, in trapped ion quantum computing research, and for trapping anti-hydrogen ions at CERN. Despite their educational potential, quadrupole ion traps are seldom introduced into the physics classroom not least because commercial quadrupole ion traps appropriate for classroom use are expensive and difficult to set up. We present an open hardware 3D-printable quadrupole ion trap suitable for the classroom, which is capable of trapping lycopodium spores. We also provide student worksheets developed in an iterative design process, which can guide students while discovering particle traps. The quadrupole ion trap operates using a 3 kV 50 Hz alternating current power supply and uses an astable multivibrator circuit including high luminosity LEDs to illuminate the spores, using the stroboscopic effect to exhibit their movement. The trap can be used in teaching laboratories to enhance high school and university students’ understanding of electric fields and their applications.

Investigating and improving introductory physics students’ understanding of electric field and the superposition principle: The case of a continuous charge distribution

Investigating and improving introductory physics students’ understanding of electric field and the superposition principle: The case of a continuous charge distribution