Mathematics · Magnetic Effects of Current
2 m की दूरी पर रखे दो लंबे समानांतर तारों में प्रत्येक में एक ही दिशा में 3 A की धारा प्रवाहित होती है। एक तार के कारण दूसरे तार पर प्रति इकाई लंबाई पर लगने वाला बल है:
- 19.0 × 10−7 N/m, आकर्षक✓
- 29.0 × 10−7 N/m, प्रतिकर्षी
- 34.5 × 10−7 N/m, प्रतिकर्षी
- 44.5 × 10−5 N/m, आकर्षक
सही उत्तर देखें
9.0 × 10−7 N/m, आकर्षक
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