حلول التدريبات العملية في الحقل المغناطيسي

سوف نستخدم التعبير للتعبير عن مقدار الحقل المغناطيسي بالقرب من سلك مستقيم يحمل تيارًا:

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باختصار: في النقطتين A وC تبلغ شدة الحقل المغناطيسي 30 ميكرو تسلا. في النقطة B تبلغ قوة الحقل المغناطيسي 15 ميكرو تسلا.