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6. Perancangan Alat Peraga Medan Magnet Disekitar Kawat Berarus dengan Hall Magnetik Sensor Bipolar Analog sebagai Demonstrasi dalam Pembelajaran Fisika

Author

Harijanto Alex, Subiki, Febriyanti Melisa Putri, Mashitoh Nidya Nur, Ningrum Tika Widiya, Rahmawati Evie, and Anindy Ratna Sary

Subjects
Current Wire, Lorentz Force, Magnetic Field, Magnetic Sensor, Physics
Abstract

Magnetic field props not only help students in understanding the basic concepts of magnetic fields, but also help in proving the existence of magnetic fields in electric current wires. The magnetic field practicum tool around the current wire, with that tool, students can conduct experiments to prove the existence of a magnetic field around the current wire and observe the direction of the deviation that occurs. The research method used is quantitative descriptive method. The collected data in a quantitative descriptive manner is used to provide an overview of the actual situation, as well as to answer questions related to the status of the subject of the study. The experiment was carried out by changing the voltage value, namely at 1.5V and 3V to analyze the difference. The relationship between the magnitude of the voltage V to the strength of the current I is directly proportional. That is, the greater the voltage given, the greater the current generated, and vice versa. Then the relationship between the strength of current I to the magnitude of deviation B is directly proportional. That is, the greater the strong current produced, the greater the deviation produced, and vice versa.

Published
2023
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12. Designing a Magnetic Field Practicum Tool on Arduino Uno-Based Toroid-Solenoid Material Using a Hall Effect Sensor.

Author

Pratiwi, Anisa Septi, Wulandari, Pria Nur, Andianti, Putri Wihatma, Pyrenia, Adisty, Mukarromah, Lailiyatul, Harijanto, Alex, and Subiki

Subjects
HALL effect transducers, MAGNETIC fields, ELECTRIC currents, STUDENT interests
Abstract

Practicum tools are learning media that can increase students' interest and motivation to learn. The practicum tool itself is very effective and efficient in supporting physics learning. The magnetic field is related to electricity and magnetism because the magnetic field is generated by an electric current, there is a transfer of charge because the magnet creates a magnetic field around the magnetic charge. Hall effect sensors are used to measure magnetic fields. The purpose of this research is to assist students in understanding magnetism material and also to fulfill the availability of practicum tools in schools, especially SMA/MA. This research uses a type of quantitative descriptive research. The measurement results in the experiment are whether there is a magnet or not, that is, if the solenoid is brought closer, the LED light will turn on, which means there is a magnet and vice versa, if the solenoid is kept away, the LED light turns off, which means there is no magnetic field. In the experiment, the effect of the number of turns shows that the more the number of turns, the greater the magnetic field. The third experiment is the effect of current with 3 trials with different current values and the same number of turns, the result is that the greater the current, the greater the magnetic field value. This shows that the results are appropriate and valid and can be used as a physics practicum tool. [ABSTRACT FROM AUTHOR]

Published
2023
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14. RANCANG BANGUN ALAT UKUR SISTEM MONITORING pH DAN SUHU KOLAM IKAN LELE BERBASIS IoT DENGAN ESP8266

Author

Hidayat, Fikri, Harijanto, Alex, Supriadi, Bambang, Hidayat, Fikri, Harijanto, Alex, and Supriadi, Bambang

Abstract

ABSTRAK Besaran fisika dapat berpengaruh baik secara langsung maupun tidak langsung terhadap keberlangsungan hidup makhluk hidup baik di darat maupun di air, termasuk pada budidaya ikan lele. Jika kualitas air selalu berubah-ubah atau tidak stabil, maka dapat berpengaruh buruk terhadap kondisi ikan seperti stres, sakit atau kematian jika tidak dapat beradaptasi terhadap perubahan yang terjadi. Suhu dan pH air merupakan dasar selain dari beberapa parameter lainnya yang digunakan untuk menjaga kualitas air kolam agar tetap sehat. Termometer dan pH meter dalam penggunaannya harus melakukan pengukuran langsung ke lokasi untuk mengetahui nilai pH dan suhu dari air kolam. Sehingga diperlukan alat monitoring pH dan suhu dengan pemanfaatan IoT yang dapat memberikan efisiensi waktu dalam melakukan pemantauan kualitas air kolam secara real time tanpa harus datang langsung ke lokasi untuk mengefisiensi waktu. Sensor yang digunakan adalah sensor pH dan sensor DS18B20. Serta menggunakan NodeMCU ESP8266 yang merupakan mikrokontroler yang telah dilengkapi oleh module WiFi ESP8266 di dalamnya. Hasil pengujian sensor pH dengan besar nilai R square = 0,909, sedangkan pada sensor suhu menghasilkan nilai R square = 0,911. Ini menunjukkan bahwa kedua sensor memiliki tingkat kevalidan alat adalah sangat valid. Kata kunci— monitoring, pH, suhu, sensor pH, sensor DS18B20 ABSTRACT Physical quantities effect things survive either in the land or water, such catfish cultivation. Unstable water quality change can impact the fish condition, such as being sick, stressed or died. Those conditions happen when the fishes can not adopt with the condition change. Water’s temperature and pH are the basic part is used to keep catfish pool water quality. Thermometer and pH meter had to be tested in the real location to analyse the pool’s water pH and termperature condition. pH and temperature monitoring tool based on IoT is needed to give efficient time in controlling water quality. Sensors used

Published
2022

22. Development of Al-Qur'an-Based Physics Learning Media Applications to Improve Higher Order Thinking Skills and Spiritual Attitudes for Preservice Physics Teacher.

Author

Nuraini, Lailatul, Anggraeni, Firdha Kusuma Ayu, Harijanto, Alex, Prastowo, Sri Handono Budi, Subiki, Supriadi, Bambang, Maryani, Sutarto, and Wahyu, Rayendra

Subjects
PHYSICS teachers, PHYSICS education, EDUCATIONAL planning, TEACHING aids, FEASIBILITY studies
Abstract

This study aims to develop an Android-based Al-Qur'an integrated physics learning media to improve preservice physics teachers' higher-order thinking skills and spiritual attitudes. The development of learning media uses the ADDIE model. Media and material experts assessed the feasibility of learning media through a validation questionnaire. The trial was carried out on 40 preservice physics teacher students. The validation results were analyzed using a descriptive technique. The analysis results show that the learning media developed is suitable for improving Higher Order Thinking Skills and the Spiritual Attitude of Preservice Physics Teachers. So, the Android-based physics learning media integrated with the Quran can be implemented for preservice physics teachers. [ABSTRACT FROM AUTHOR]

Published
2022
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