- #1
bakshi
- 10
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The example of the charging capacitor is often used to show that Ampère's law cannot work in electrodynamics, since the value of the integral (I'm talking about Ampère in integral form here) would depend on the choice of surface delimited by the Amperian loop. It is then shown that since the displacement current between the plates of the capacitor is equal to the conduction current in the wire of the circuit, Ampère-Maxwell's law gives the same result for the integral.
My problem is the following: why isn't there also a displacement current inside the wire of the circuit? The electric field obvously changes inside the wire, since the voltage changes while the capacitor is charging. Since there is a changing electric field, there should be a displacement current, no?
Thank you,
Bakshi
My problem is the following: why isn't there also a displacement current inside the wire of the circuit? The electric field obvously changes inside the wire, since the voltage changes while the capacitor is charging. Since there is a changing electric field, there should be a displacement current, no?
Thank you,
Bakshi