Mathematics · Electromagnetism
यदि एक कुंडली (coil) में 1000 घुमाव (turns) हैं और उसमें 20 mA की विद्युत धारा प्रवाहित होती है, तो कुंडली में उत्पन्न चुंबकीय वाहक बल (mmf) की गणना करें।
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