من اين تاتي الالكترونات بالطاقة لكي تتحرك بهذه السرعة الكبيرة؟

من اين تاتي الالكترونات بالطاقة لكي تتحرك بهذه السرعة الكبيرة؟

خواطر علمية: سرعة الالكترونات

الالكترونات دفائق مشحونة. بمعنى ان لها شحنة كهربية. ولهذا فإنها تتأثر بالمجال الكهربي وبدقة أكثر فان المجال الكهربي يؤثر على الإلكترونات بقوة تجعلها تتسارع في المجال الكهربي.

و نظرا لكون كتلة الإلكترون صغيرة جدا بالمقارنة بكتلة الأجسام الأخرى فان الالكترونات تتسارع وتصل لسرعات كبيرة جدا حتى في وجود مجال كهربي ضعيف.

و بهذا الإلكترون يدور حول نواة الذرة بسرعة كبيرة جدا تصل لأكثر من مليون متر في الثانية وهذا يعود للمجال الكهربي المحدث من طرف النواة الموجبة.

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