Rankers Physics
Topic: Magnetic Effects of Current
Subtopic: Magnetic Field Due to Straight Current Carrying Wire

A long straight, hollow, conductor (tube) carrying a current has two sections A and C of unequal cross sections joined by a conical section B. 1, 2 and 3 are points on a line parallel to the axis of the conductor. The magnetic fields at 1, 2 and 3 have magnitudes B1, B2 and B3. Then : Image related to
B1 = B2 = B3
B1 = B2 ≠ B3
B1 < B2 < B3
B2 cannot be found unless the dimensions of the section B are known

No solution provided for this question.

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