Explain why the sense of deflection of a compass needle placed just above a straight…

PHYSICS · Subjective · CBSE · Physics · Magnetic Effects of Electric Current · Magnetic Effects of Electric Current

Problem

Explain why the sense of deflection of a compass needle placed just above a straight horizontal conductor changes when the direction of current in the conductor is reversed.

Related theory

Right-Hand Thumb Rule
Fields due to Currents
Magnetic effect of current
Magnetic field due to a current
Magnetic field due to a straight conductor
Magnetic Effects of Electric Current

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