Relation of Non-neutralized electric currents and the activity in active regions

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Nugget
Number: 386
1st Author: P. VEMAREDDY
2nd Author:
Published: 24 August 2020
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Introduction

Transient eruptive events derive their energy from electrical currents that pass through the solar atmosphere. There are evidential reports that the strong electrical currents involved in major flares are embedded within magnetic flux that has emerged from the convection zone through the photosphere into the corona. We identify these currents via the twisting of the field, or by other means such as Faraday's Law as applied to the Zeeman effect observed in the solar photosphere.

According to Parker (1996), the net electric current at any cross-section of a flux tube embedded in relatively field-free plasma must result in a zero value, which is not the case observationally (Venkatakrishnan & Tiwari 2009).

Figure 1:
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