פרקטיקות שדה מגנטי
117. יא.2.6
בביטוי הכוח המגנטי הפועל על מוליך נושא זרם הנמצא בתוך שדה מגנטי , גודל הכוח תלוי בזווית α , הזווית שבין כיוון הזרם לכיוון השדה המגנטי.

כיוון הזרם בקטע CM הוא בכיוון השדה המגנטי 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כיוון הזרם בקטע NO הוא בכיוון נגדי לכיוון השדה
מביטוי הכוח המגנטי בשני הקטעים CM ו- NO לא פועל כוח מגנטי.
כיוון הזרם בקטע OC הוא בניצב לשדה המגנטי
מביטוי הכוח המגנטי בקטע OC פועל כוח מגנטי מקסימאלי.