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AIIMS2004PhysicsMagnetic Effects of Current

The magnetic field due to a straight conductor of uniform cross-section of radius a and carrying a steady current is represented by

Correct answer

0

Step-by-step solution

Magnetic field at a point outside the straight conductor is B= ₀ I 2 r i.e. B (1 / r) (r>a) . Magnetic field at a point lying inside the conductor is B r (r

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