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JEE Main202310 Apr 2023Evening ShiftPhysicsMagnetic Effects of CurrentActual

A straight wire carrying a current of 14 A is bent into a semicircular arc of radius 2 . 2 cm as shown in the figure. The magnetic field produced by the current at the centre O of the arc is ____ × 10 – 4 T

Correct answer

0

Step-by-step solution

It is given that i = 14   A R = 2 . 2 × 10 - 2   m The magnetic field at the centre O is B = μ 0 i 4 R = 4 π × 10 - 7 × 14 4 × 2 . 2 × 10 - 2 = 2 × 10 - 4   T

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