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All Journal Jurnal Geliga Sains: Jurnal Pendidikan Fisika
M. Rahmad
University of Riau
Education Physics Social Sciences

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PERANCANGAN RANGKAIAN APLIKASI DASAR TRANSISTOR M. Rahmad; Yessy Angelia; Muhammad Sahal
Jurnal Geliga Sains: Jurnal Pendidikan Fisika Vol 1, No 1 (2007)
Publisher : Program Studi Pendidikan Fisika FKIP Universitas Riau

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Abstract

 This research purpose to design an instrument capable to run directly bipolar transistors function as an amplifier in current, AC voltage, and as switching. This type of research is research and development, which is developing a basic application instrument for bipolar transistors. The testing to bipolar transistor elementary application instrument use measuring instrument of microampere meter, voltmeter, a generator function, and digital oscilloscope. The reached result indicates that this instrument can prove to gain the current and gain voltage of the transistor. That thing is seen from existence mean gain current 119,99 - 480. While voltage gain 1,46 - 5,29. Transistor application for switching found the fact that transistor starts to have as switching at the voltage base-emitter 0,58 - 0,7 Volt, the result is equal to a bipolar transistor barrier voltage to emission a current from pin emitter to pin collector. 
INTERAKSI BELAJAR MENGAJAR DALAM PEMBELAJARAN FISIKA DENGAN PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE INVESTIGASI KELOMPOK PADA SISWA KELAS X1 SMA NEGERI I TAMBANG KAMPAR Mitri Irianti; Lisma Nurliza; M. Rahmad
Jurnal Geliga Sains: Jurnal Pendidikan Fisika Vol 1, No 1 (2007)
Publisher : Program Studi Pendidikan Fisika FKIP Universitas Riau

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Abstract

 The purpose of this research was to describe teaching-learning interaction in teaching physics by applying cooperative teaching in terms of the type of group investigation by the first-year students at SMAN 1 Tambang Kampar. The research instrument used in this research was observation sheet. It was used by aspect observed based on cooperative teaching in terms of the type of group investigation. The model aims to motivate the student, to set the problem in the group, to report the result of group activities, and conclude the lesson. The technic of data collection was by observing teaching-learning interaction, which happened in each aspect observed every two minutes during the teaching process. The data analysis was by counting the percentage of teaching-learning interaction. The result of this research showed that the interaction of teaching-learning between teachers and students, students and teachers, students, and students happened to each step in teaching activity. The highest percentage of teaching-learning interaction was in the problem-solving of group activity. Hence, cooperative teaching in term of the type of group investigation is able to create teaching-learning interaction which various in teaching.
Co-Authors Lisma Nurliza Mitri Irianti Muhammad Sahal Yessy Angelia