Influence of Core Change on Current in Solenoid Loops

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Changing the core material of a solenoid affects the induced current primarily during the transition phases when the current is applied or removed. In a DC solenoid, the current change is influenced by the solenoid arm's position, which alters the inductance and slows the current rise. The magnetic permeability of the core material plays a crucial role in this process, especially if the core is ferromagnetic. Additionally, the mechanical load against which the arm moves further impacts the current change. Understanding these factors is essential for analyzing the behavior of solenoid loops under varying core materials.
diegbarrientos
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How does changing the core of the solenoid affect the current induced in the loop?
 
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By "changing the core" in the solenoid, I believe you mean changing the material used.

If it's a DC solenoid (and most are), the difference will only occur when the current changes - when it is first applied and when it is first removed. But during those transition periods, the current will also be affected by the position of the solenoid arm. As the arm moves in, the inductance rises - slowing the rise of the current. Since the arm may be moving against a load, the actual current change during transition will be effected by the magnetic permeability of the arm as well as the mechanical force it generates.
 
Are you talking about a ferromagnetic core, or some other kind of core?
 

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