[問題]電磁感應的小疑問
請問Faraday's law of induction
→ → dΦ(B)
∫E ds= -──
dt
和Maxwell's law of induction
→ → dΦ(E)
∫B ds=με───
dt
是類比的,可是為什麼後者沒有負號?
煩請版上高手解惑...
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