http://higheredbcs.wiley.com/legacy/college/halliday/0471758019/simulations/sim3
ID: 1592685 • Letter: H
Question
http://higheredbcs.wiley.com/legacy/college/halliday/0471758019/simulations/sim39/sim39.html
(b) When you choose the "AC source with inductor" you will see an animation that shows what is happening to the inductor as time goes by in the circuit. For best results use the smallest possible frequency and inductance values. The red arrow shows which direction the current is going in the inductor. For this situation
(ii) Faraday's Law is helpful for understanding what is going on in the inductor. Faraday's Law states that the voltage across the inductor is proportional to the negative of the rate of change of magnetic flux in the inductor. When will the voltage across the inductor reach its maximum magnitude, and what produces the magnetic field in the inductor? Select the two true statements from the list below.
The magnitude of the voltage reaches maximum when the magnetic field reaches maximum strength in the inductor.
The magnitude of the voltage reaches maximum when the magnetic field passes through zero, because this is when the magnetic flux is changing most rapidly.
The magnetic field is produced by the current in the inductor.
The magnetic field is produced by the rate of change of the current in the inductor.
The magnetic field is produced by the inductor's inductive reactance.
Explanation / Answer
The magnetic field is produced by the rate of change of the current in the inductor.
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