פתרונות פרקטיקות 2 אלקטרוסטטיקה

46. 14.4

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נבטא את עבודת הכוח החיצוני ונחשב את ערכו:

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הגוף נע בהשפעת הכוח החשמלי והכוח החיצוני בלבד ובנוסף אין שינוי באנרגיה הקינטית של הגוף.

 לכן, ניתן להשתמש בביטוי עבודת הכוח החיצוני:

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