APFIVE Displacement Current and Solenoids
A solenoid with 500 turns per meter carries a current that increases at a rate of 50 A/s. At a point 2 cm from the central axis of the solenoid, what physical phenomenon primarily contributes to the magnetic field?
A
Only conduction current in the solenoid
B
Both conduction current and displacement current
C
Neither, as Ampère’s Law doesn’t apply here
D
Only displacement current from changing E-field
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