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A wire carrying current t has the shape as shown in adjoining figure.

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A wire carrying current t has the shape as shown in adjoining figure.

Linear parts of the wire are very long and parallel to X-axis while semicircular potion of radius R is lying in Y-Z plane. Magnetic field at point O is

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1 Answer

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Best answer

Correct option  (a)

Explanation:

Given situation is shown in the figure.

Parallel wires 1 and 3 are semi-infinite, so magnetic field at O due to them

Net magnetic field at point O is given by

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