Abstract
It has been designed a homogeneous magnetic field (B) generation system in a particular room. This is important to conduct research related to the effects of magnetic field exposure on chemical reactions, especially in the process of making membranes. The development was carried out using four Helmholtz coils which radius (R) of 15 cm and number of turn (N) of 130 turns, that connected in parallel and coaxial. The both coils were fixed at the same distance as the radius of the coil that intended to get a homogeneous magnetic field between the both coils. The design has been tested by measuring a magnetic field generated as function of a current (I) given. The results show that, for x is the distance from the midpoint of the both coils to a certain distance, the homogeneous magnetic field obtained in the region of -7 cm < x <+7 cm, the area between the both coils. The magnitude of the homogeneous magnetic field produced depends on the electric current given.
Highlights
It has been designed a homogeneous magnetic field (B) generation system in a particular room
The results show that, for x is the distance from the midpoint of the both coils to a certain distance, the homogeneous magnetic field obtained in the region of -7 cm < x
Physics for Scientists and Engineers, Thomson book/cole, 2004, Six Edition
Summary
Besar medan magnet yang dihasilkan oleh kumparan Helmholtz bergantung pada arus listrik I yang diberikan, jumlah lilitan N, serta jari-jari kumparan R dan jarak x (jarak dari titik tengah kedua kumparan ke titik tertentu). Untuk dua kumparan yang identik dipasang parallel dan koaksial dengan jarak antara koil adalah a sperti Gambar 1, besar medan magnet sepanjang sumbu koil adalah: [7,8]. Dua kumparan Helmholtz dihubungkan secara seri pada jarak 15 cm (sama dengan jari-jari kumparan), dan dihubungkan dengan sumber arus DC. Pada eksperimen ini diukur medan magnet (B) sebagai fungsi arus (I), jarak (x) dan jumlah lilitan (N). Pengukuran medan magnet sebagai fungsi jarak dilakukan mulai dari titik tengan antara ke dua kumparan ke sepanjang garis sumbu kumparan dalam arah horisontal (ke kiri dan ke kanan).
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