Recent content by Nolan
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Undergrad Magnetic Field: Inside & Outside Current Carrying Wire
The difference in the two answers you provided is the result of a fundamental assumption about how current flows through a wire. The problem you're dealing with here assumes that the current is evenly distributed over the wire's cross section. When you use Ampere's Law inside of the wire, you...- Nolan
- Post #3
- Forum: Electromagnetism
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Graduate Discontinuities in the time derivative of the magnetic field
Sure! But maybe it would be beneficial to add a resistor in the "A" configuration so that the current reaches a fixed value? From what I could find, there is a transient period before t=0 where the voltages across the resistor and inductor are changing as the circuit moves from an open circuit...- Nolan
- Post #9
- Forum: Electromagnetism
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Graduate Discontinuities in the time derivative of the magnetic field
Thank you Dale, I'm sorry for the silly question. I was being completely oblivious to the fact that the short circuit current through the inductor was even creating a magnetic field... which is embarrassing- Nolan
- Post #7
- Forum: Electromagnetism
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Graduate Discontinuities in the time derivative of the magnetic field
An inductor and resistor are arranged in parallel to a constant voltage source. There is a switch connected to a terminal on the inductor that can create a closed loop that includes either the voltage source, or the resistor. The switch is left connecting the source and inductor for a long...- Nolan
- Thread
- Causality Derivative Electricity and magnetism Field Magnetic Magnetic field Physics Time Time derivative
- Replies: 9
- Forum: Electromagnetism