11. Lenz's and Faraday's Laws

What people said

Recommends Tonylb1 · 2016-02 · Physics Stack Exchange · on “Inductance coil with self-inductance and resistance”

actually even in an ideal inductor the non-conservative electric field produces a conservative one, thus we can define voltage across an inductor. Check this video [this video]

Recommends Farcher · 2017-11 · Physics Stack Exchange · on “What‘s the potential difference between two points of rectangle circuit in a changing magnetic field?”

The question about a voltmeter reading as stated has no answer unless you include a statement about the position of the voltmeter and the leads that connect it to points $A$ and $C$. By connecting a voltmeter into the circuit you have introduced extra loops which have emf induced in them. [LINK] It is not a matter of "real" potential difference it is to do with the reading on a voltmeter. In the diagram above all three voltmeter readings will be different. For more about this I would suggest that you watch Walter Lewin's lecture from about 33 minutes [LINK] and the notes that he produced [LINK] . Also Ramamurti Shankar's lecture from about 38 minutes [this video] is worth watching?

Recommends MaximusIdeal · 2023-08 · Physics Stack Exchange · on “What is the electric field around an inductor?”

This question comes from this Walter Lewin video at 35:00 [LINK] where he says "I'm going to confuse you even more" (and I suppose he somewhat succeeded). Walter Lewin claims there is an electric field around the inductor (when the current is changing). Ok, I will explain the setup myself below, so feel free to either watch the video from the 35 minute mark or read my writing. In my scenario, I will simplify things and talk about an RL circuit instead of an RLC circuit. Afterwards, I will ask my question. Please note: This post is not about the debate between Kirchhoff's voltage law vs Faraday's law. I consider that debate fully resolved by this PSE post [LINK] , this PSE post [LINK] and thi

Cites Kelvin S · 2015-05 · Physics Stack Exchange · on “Charge accumulated at two ends of resistor/inductor?”

Thanks, but in a physics lecture ( [this video] ) see 1:00:12, the lecturer explain things in terms of accumulated charge. That' what bothers me. What's happening there?

Cites Steve T. · 2018-07 · Physics Stack Exchange · on “Charging current in open AC circuit”

I watched the lecture and at this point [this video] there is mention about AC generator and wall outlet, that there is only voltage and, obviously, no current until we plug in some load. Since that, one thing start to disturb me so I have a question. If we connect a wires to a DC voltage source terminals and leave them open ended there will be tiny currents during transient state as the wires charging to the terminals potentials. And no currents after that as should expect from open circuit. Then if some load are plug in there will be current in the circuit which depends on the load resistance. What if there is same circuit but AC source instead of DC. Connected wires keeps constantly recharging

Cites Tony Stark · 2021-09 · Physics Stack Exchange · on “Do Electrostatic Charges build up at the ends of an Inductor in closed circuit?”

I was watching this video [this video] from YaleCourses youtube channel. At around 41.00 minutes, the professor introduces the notion of charge buildup at the ends of an Inductor in a closed circuit. Is the charge buildup a real phenomenon in a current-flowing circuit? If so, does a conservative field really exists inside the Inductor?