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Electromagnetism 5: Earth as a Microphone
Description
The fascinating phenomenon of electromagnetic induction allows us to convert mechanical motion into electrical signals, much like the process inside a microphone. By using a powerful magnet and a copper coil connected to a speaker, one can demonstrate how ground vibrations or the movement of magnetic objects are translated into audible sounds. This experiment illustrates the profound connection between magnetism, electricity, and motion within the world of physics.
Original title
אלקטרומגנטיות 5 - כדור הארץ כמיקרופון
התופעה המרתקת של השראה אלקטרומגנטית מאפשרת לנו להפוך תנועה מכנית לאותות חשמליים, בדיוק כפי שקורה בתוך מיקרופון. באמצעות מגנט חזק וסליל נחושת המחובר לרמקול, ניתן להדגים כיצד תנודות הקרקע או תנועה של חפצים מגנטיים מתורגמות לצלילים שניתן לשמוע. הניסוי ממחיש את הקשר ההדוק בין מגנטיות, חשמל ותנועה בעולם הפיזיקה.
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