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3. A uniform magnetic field B = 3 i ^ + 4 j ^ + k ^  exists in region of space. A semicircular wire of radius 1 m carrying current 1 A having its centre at (2. 2, 0) placed in x-y plane as shown in fig. The force on semicircular ‚Äč wire will be.
A   2 i ^ + j ^ + k ^                       B   2 i ^ - j ^ + k ^ C   2 i ^ + j ^ - k                     D   2 - i ^ + j ^ + k ^

 

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