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J7-21: HYSTERESIS 8 years 9 months ago #192

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ID Code: J7-21
Purpose: Demonstrate the hysteresis loop for an iron transformer core
Description: This demonstration shows the standard hysteresis curve with the magnetic induction B plotted on the vertical axis and the applied field H plotted on the horizontal axis. The value of H is obtained by using the voltage across a 1 ohm resistor in series with the primary coil of the transformer. The value of B in the core of the transformer is obtained as the voltage across a capacitor in series with a resistor and the secondary coil of the transformer. A variac adjusts the primary voltage so that the interesting parts of the hysteresis loop can be seen.
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Last edit: by zzfixk21.
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