Physics · Electromagnetic Theory
b चौड़ाई की एक पतली पट्टी पर एक पृष्ठ धारा घनत्व (surface current density) K = ae-y मौजूद है। इस पट्टी से संबद्ध कुल पृष्ठ धारा कितनी है (जहाँ a उपयुक्त विमाओं वाला एक नियतांक है)?
- 1a(eb + e-b)
- 2a(e-b - 1)
- 3a(1 + e-b)
- 4a(1 - e-b)✓
सही उत्तर देखें
a(1 - e-b)
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