Mathematics · Electricity and Magnetism Calculations
दो समानांतर, लंबे तारों को निर्वात में 0.20 मीटर की दूरी पर रखा गया है, जिनमें से प्रत्येक में एक ही दिशा में x A की धारा प्रवाहित हो रही है। यदि प्रत्येक तार पर प्रति मीटर आकर्षण बल 2 × 10-6 N है, तो x का मान लगभग कितना है? (निर्वात की पारगम्यता μ0 = 4π × 10-7 T·m/A लें)
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- 12.0 A
- 21.0 A
- 32.4 A
- 41.4 A✓
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1.4 A
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