Electric potential doubt

[quartz wedge]

Check the image attached. For electric potential when r< a, we are considering potential due to 1) charge at centre 2) induced charges

For induced charges, why have we taken the distance from the centre of sphere (a,b) and why not (a-r,b-r)

[foggy pelican]

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[fallen jasper]

Potential within a charged spherical shell is constant and depends only on charge on the shell, and radius of the shell. It does not depend on where inside the shell the point we consider is

[quartz wedge]

Oh I see. Ye this was mentioned in cengage. Do you have any good book recommendations for potential in continuous charge distributions? Resnick halliday and krane doesn't cover these and cengages theory is a bit terrible to study with

Any full book recommendation would do as well

[fallen jasper]

Hmm

Griffiths does that, but it might be overkill

[quartz wedge]

Because even though I understand the mathematics I find it a bit hard to grasp intuitively without resnick halliday

[quartz wedge]

Probably
How long would it take me to cover potential from Griffith?

[fallen jasper]

Never mind, i remembered Griffiths does it the vector calculus way.

Hmm

[quartz wedge]

Any teacher recommendation then?

[fallen jasper]

You can go for the Physics Galaxy books i suppose if you want the JEE oriented chapters

[quartz wedge]

Jee oriented isn't necessary. In fact,I despise those books because they only have good problems,never good theory but yea,I'll give it a shot. Thank you

[fallen jasper]

If you'd prefer more theory, and more difficult problems, you can try an Olympiad book like Wang&Ricardo

I actually did all of this from Griffiths ;-; so...

Because I was already familiar with vector calculus back then.

[quartz wedge]

Oh damn 💀

[fallen jasper]

But it's a huge topic, and utterly unnecessary for twelfth

[quartz wedge]

Air 1 2025 mil gya

[fallen jasper]

Nah, Mains mein 200 bhi nahi aaya hai

[quartz wedge]

Welp, thanks again

+close @fallen jasper

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[foggy pelican]

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[fallen jasper]

It's solved

'solved'

[quartz wedge]

+solved @fallen jasper