- #1
Biocalculus
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Hello, I have a conceptual question regarding Faraday's Law: emf = d/dt(Φ), where |Φ|=|B*A|. My question is does Faraday's Law take into account the distance between the solenoid producing the non-coulombic electrical field (Enc) and a wire circling the solenoid, which now have an emf due to the Enc. According to the textbook, the non-coulombic electrical field decreases at a rate of 1/r outside of the solenoid, so that when calculating the emf of the encircling wire we should take into account the distance from the solenoid.