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All Journal Sainteknol : Jurnal Sains dan Teknologi Journal of Geography Science and Education
Khabiburrahman, Khabiburrahman
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Computer Science & IT Earth & Planetary Sciences Education Environmental Science Social Sciences

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PENGARUH VARIASI BAHAN DAN JUMLAH LILITAN GROUNDSTRAP TERHADAP MEDAN MAGNET PADA KABEL BUSI SEPEDA MOTOR Khabiburrahman, Khabiburrahman; Supraptono, Supraptono; Widjanarko, Dwi
Sainteknol : Jurnal Sains dan Teknologi Vol 15, No 2 (2017): December 2017
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sainteknol.v15i2.11501

Abstract

Tujuan penelitian ini menguji pengaruh penggunaan groundstrap dengan variasi bahan dan jumlah lilitan terhadap medan magnet pada kabel busi. Metode penelitian yang digunakan adalah eksperimen, yaitu groundstrap  dengan bahan tembaga dan aluminium berdiameter 0,80 mm dengan variasi lilitan 100, 175, dan 250 dililitkan pada kabel busi dan diuji menggunakan gaussmeter yang di dekatkan pada kabel busi keadaan mesin hidup. Hasil penelitian dianalisis dengan teknik analisis deskriptif. Hasil penelitian menunjukkan penggunaan bahan groundstrap dengan hambatan jenis rendah (tembaga) dan jumlah lilitan semakin banyak (250) lilitan pada kabel busi mampu menurunkan medan magnet paling baik dikarenakan mampu mengikat dan men-groundkan lebih maksimal. Rata-rata medan magnet kabel busi terendah dihasilkan groundstrap tembaga 250 lilitan sebesar 2,43 gauss
The effect of e-learning on the Geography Education students’ levels of understanding at Universitas Veteran Bangun Nusantara Kurniaaji, Bayu; Khabiburrahman, Khabiburrahman; Sudargono, Agus; Rohsulina, Pranichayudha
Journal of Geography Science and Education Vol. 4 No. 1 (2022): April
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/jgse.v4i1.2207

Abstract

This study aims to: (1) Find out the effect of e-leaning on the geography education students’ understanding (2) Evaluate the geography education students’ levels of understanding after the use of e-learning. This study was One Group Pretest – Posttest Design. The effect of e-learning on the levels of understanding was measured using pretest and posttest which was continued with analyzing using t-test and statistical description. This study results: (1) There was an effect of e-learning on the geography education students’ levels of understanding in the hydrogeography material which showed with a p.value sig. (2-tailed) at 0.001 (lower than 0.05) and t-statistic value of 4.236 which is greater than t-critical value (4.236 > 1.796), (2). Geography education students’ levels of understanding after the use of e-learning increased as seen from statistical description which showed that 25% students (3 students) is partially understand and occuring misconception which is the rest of 75% (9 orang) students is partially understand without misconception
Co-Authors Dwi Widjanarko Kurniaaji, Bayu Pranichayudha Rohsulina Sudargono, Agus Supraptono Supraptono, Supraptono