At a point 3 cm from a straight conductor carrying a current of 4 A

MATHEMATICS · Subjective · CBSE · Mathematics · Proportional Reasoning-2 · Proportional Reasoning-2

Problem

At a point 3 cm from a straight conductor carrying a current of 4 A, the magnetic field strength is B. If the current is increased to 12 A and the point of observation remains the same, determine the new magnetic field strength in terms of B.

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