Problem Solving Strategies

General chat for high school physics. For MathJax see meta.sta...
Nov 30, 2024 11:19
@mo-_- Hi
Nov 30, 2024 11:19
@JohnRennie haha spot on
Nov 30, 2024 11:17
@JohnRennie Hi! I used to discuss questions with you guys a few years back. I'm glad to see you and this room still active. Cheers!
Jun 14, 2021 06:08
ah yes
Jun 14, 2021 06:06
yes!
Jun 14, 2021 06:04
yes
Jun 14, 2021 06:03
@JohnRennie Just one more thing, doesn't the loops in the solenoid make it's magnetic field differ from a simple wire's Magnetic field?
Jun 14, 2021 05:58
ok I'll check it out
Jun 14, 2021 05:57
yes
Jun 14, 2021 05:56
ah yes
Jun 14, 2021 05:54
hmm yes
Jun 14, 2021 05:52
yes
Jun 14, 2021 05:51
oh, ok.
Jun 14, 2021 05:48
@JohnRennie yes
Jun 14, 2021 05:45
@JohnRennie, I guess it is not exactly 0 in real solenoid because in a real solenoid the point that magnetic field outside is exactly parallel to solenoid everywhere(that comes through the assumptions you mentioned) doesn't hold good?
Jun 14, 2021 05:40
thank you :-)
Jun 14, 2021 05:40
ah ok, so it is zero for this very ideal case, not for others.
Jun 14, 2021 05:37
Jun 14, 2021 05:36
i was going through some previous conversations in which you mentioned that the magnetic field outside a ideal solenoid is not exactly 0, but my book(Griffiths) proves it to be exactly 0, what is the inaccuracy in the proof.
Jun 14, 2021 05:35
yes sir, sending
Jun 14, 2021 05:25
@JohnRennie, I have a small question regarding magnetic effects of current
May 16, 2021 10:01
So if 50J heat is given to system, you put +50 in above but if it is given 50J heat is extracted then you have to put -50 in above
May 16, 2021 09:57
In physics it is, Heat Given to system = change in PE+ Work done by the system against its surrounding
May 16, 2021 09:54
@SrijanM.T are you referring to chemistry or physics, because both have different conventions
May 16, 2021 09:54
The reason was that the particles in Ideal gas are considered as points , hence no vibration or rotation. So only energy is transational
May 16, 2021 09:52
That's what I learnt from my book
May 16, 2021 09:51
@SrijanM.T the internal energy of ideal gas is only it's Kinetic energy
May 16, 2021 09:49
@SrijanM.T, which book do you follow?
May 16, 2021 09:46
what you have written is change in energy
May 16, 2021 09:45
well i know U=(f/2)nrt not the one with delta in it
May 16, 2021 09:41
Yes sir, thank you very much :-) I'm very happy, I have been think about this problem for 3 days now
May 16, 2021 09:40
yeah I just overlooked it
May 16, 2021 09:40
oh in the wire, we did 0
May 16, 2021 09:37
no, inside the conductor (any 1 plate)
May 16, 2021 09:35
sir, how will it be q/2e+q'/2e inside the plate
May 16, 2021 09:33
yes sir
May 16, 2021 09:32
yes
May 16, 2021 09:32
yes sir
May 16, 2021 09:31
yes sir
May 16, 2021 09:26
ok :-)
May 16, 2021 09:22
@JohnRennie, I was referencing to this, please go through this and explain me.
May 16, 2021 09:21
May 16, 2021 09:14
No problem sir, thank you for your time :-)
May 16, 2021 09:11
It's written in Feynman Lecture on physics Vol 2. pg 22-3
May 16, 2021 09:10
May 16, 2021 09:08
May 16, 2021 09:06
the left capacitor field does not affect the right capacitor
May 16, 2021 09:06
like in this
May 16, 2021 09:06
May 16, 2021 09:06
If we have two capacitors, then the electric field on one capacitor does not affect the other