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Introductory Physics Homework Help
How Does Moving an Iron Rod Affect Ammeter Readings in a Solenoid Circuit?
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[QUOTE="rude man, post: 4489345, member: 350494"] V = d/dt(Li). Usually it's V = L di/dt but in this case ... BTW the problem is badly stated. An ideal solenoid has no resistance so, in series with an ideal ammeter, the current would just build up to infinity before the rod is even inserted. Assume a resistor in series with the solenoid, and an ideal ammeter (zero internal resistance). [/QUOTE]
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How Does Moving an Iron Rod Affect Ammeter Readings in a Solenoid Circuit?
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