Johdinsilmukan halkaisija on 1.9 cm, ja se on homogeenisessa magneettikentässä siten, että kenttäviivojen ja silmukan normaalin välinen kulma on 62 astetta. Magneettikentän muuttuessa silmukkaan indusoituu itseisarvoltaan 4.1 mV:n jännite. Kuinka suuri tällöin on magneettikentän muutosnopeuden itseisarvo? Anna vastaus yksiköissä T/s yhden desimaalin tarkkuudella.A wire loop with diameter of 1.9 cm is in a uniform magnetic field such that the angle between field lines and the the normal of the loop is 62 degrees. The change of the magnetic field induces in the loop the voltage with the absolute value of 4.1 mV. How great is then the rate of change of the absolute value of the magnetic field? Give your answer in units T/s with one decimal accuracy.数值题

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Using Stokes' Theorem, which of the following is Faraday's Law induction in differential form? 1) ∇ ∙ 𝐵 → = ∂ 𝐸 → ∂ 𝑡 2) ∇ × 𝐵 → = − ∂ 𝐸 → ∂ 𝑡 3) ∇ ∙ 𝐸 → = ∂ 𝐵 → ∂ 𝑡 4) ∇ × 𝐸 → = − ∂ 𝐵 → ∂ 𝑡  

Using Stokes' Theorem, which of the following is Faraday's Law induction in differential form? 1) ∇ ∙ 𝐵 → = ∂ 𝐸 → ∂ 𝑡 2) ∇ × 𝐵 → = − ∂ 𝐸 → ∂ 𝑡 3) ∇ ∙ 𝐸 → = ∂ 𝐵 → ∂ 𝑡 4) ∇ × 𝐸 → = − ∂ 𝐵 → ∂ 𝑡  

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