Maxwell's Capacitor argument for a time independent Current

AI Thread Summary
The discussion revolves around the concept of "time independent current," which is clarified to mean a constant current that does not vary with time, contrasting with time-dependent currents like AC. Participants seek to understand this terminology and its implications in the context of capacitors. The conversation highlights confusion over the term "time independent," suggesting that "constant current" may be a more accurate description. The distinction between constant and time-dependent currents is emphasized, particularly in relation to how they interact with capacitors. Overall, the thread seeks clarity on the definitions and examples of these types of currents.
Shreya
Messages
187
Reaction score
64
Homework Statement
Why can't we apply the. Maxwells argument to a time independent Current applied to a capacitor, to conclude the existence of a displacement Current inside a capacitor?
Maxwells argument considered a pot like surface between the plates of a capacitor with its open end outside. And argued that since the current enclosed is 0, B must be 0 just inside the capacitor, which is not true.
Relevant Equations
Ampere Maxwell Law
Is it because the current applied to a capacitor will never be time independent? Please help me out🙏
 
Physics news on Phys.org
Sorry, what is a "time independent current"? Can you define that, or give some examples?
 
berkeman said:
Sorry, what is a "time independent current"? Can you define that, or give some examples?
What I meant was a constant current - one which is not a function of t. A time dependent current would be AC Current. I am not sure if the name time independent is correct.
 

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »
Thread 'Trying to understand the logic behind adding vectors with an angle between them'

Thread 'Trying to understand the logic behind adding vectors with an angle between them'

My initial calculation was to subtract V1 from V2 to show that from the perspective of the second aircraft the first one is -300km/h. So i checked with ChatGPT and it said I cant just subtract them because I have an angle between them. So I dont understand the reasoning of it. Like why should a velocity be dependent on an angle? I was thinking about how it would look like if the planes where parallel to each other, and then how it look like if one is turning away and I dont see it. Since...
View full post »

Similar threads

Finding Current in Resistors & Charge of Capacitor
Replies
4
Views
2K
Final Charge of a Capacitor in a Circuit with Capacitors and Resistors
Replies
9
Views
2K
Why can we model spherical capacitor with two dielectrics as two capacitors in series?
Replies
4
Views
2K
2-D kinematics challenge problem help please
Replies
1
Views
2K
Capacitors in parallel or series
Replies
22
Views
2K
Magnitude of magnetic field at different points near a capacitor.
Replies
6
Views
975
What does "Fully Charged Capacitor" mean?
Replies
6
Views
3K
Current through capacitors in parallel
Replies
24
Views
2K
Changing capacitance effect on ripple in full rectification circuit
Replies
4
Views
3K
Question Regarding Parallel Plate Capacitor Network
Replies
10
Views
2K

Hot Threads

Recent Insights

Back
Top