Inductance and Charge Redistribution

[rude man]

Additional comment: it is an interesting probem because it makes concrete the nexus between 'potential' of physics and 'voltage' of electrical engineering.

 

[etotheipi]

Additional comment: it is an interesting probem because it makes concrete the nexus between 'potential' of physics and 'voltage' of electrical engineering.

Yeah, there are a few different ways you could think about it. Either a closed loop to infinity and back, in which case you can treat the potential as the potential difference between the sphere and infinity: $\frac{kQ_A}{r} - L\frac{di}{dt} - \frac{kQ_B}{r}$. Or you could think about it in the sense of two potentials $\frac{kQ_A}{r}$ and $\frac{kQ_B}{r}$ and a potential difference between them...

Can blur the lines a little but but usually the distinction is that to discuss potential we have a fixed reference, so it means being extra careful when discussing the potential relative to another arbitrary point (really differences) as opposed to a potential relative to the fixed reference.

 

[Ayesha02]

Guys I have a lot of these kinda problems just follow me and stay tuned so that we have more of these discussions.

The most recent one i have put up goes by the title- 'Hard Momentum Conservation'
See u there:)

 

[etotheipi]

See u there:)

Sorry, I had to:

 

[Ayesha02]

Guys I have a lot of these kinda problems just follow me and stay tuned so that we have more of these discussions.

The most recent one i have put up goes by the title- 'Hard Momentum Conservation'
See u there:)

@etotheipi I need u there my man:)

 

[rude man]

Sorry, I had to:

We badly need some humor on this site. We all love physics but we need to take even it a bit more lightly now and then. Thank you! (Of course this song always reminds me of 'Dr. Strangelove' too.)

 

[rude man]

Guys I have a lot of these kinda problems just follow me and stay tuned so that we have more of these discussions.

The most recent one i have put up goes by the title- 'Hard Momentum Conservation'
See u there:)

We helpers love to help! Really! Forces us to review also, often; so in a sense you're a helper too! And all of us love physics all the time!

 

[etotheipi]

We badly need some humor on this site. We all love physics but we need to take even it a bit more lightly now and then. Thank you! (Of course this song always reminds me of 'Dr. Strangelove' too.)

Especially now that cabin fever has fully set in