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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Figure shows two current segment . The lower segment carries a current of i1=0.40A and includes a semicircular arc with radius 5.0 cm, angle 180∘ , and center point P The upper segment carries current i2=2i1 and includes a circular arc with radius 4.0 cm, angle 120∘ and the same center point P. What are the (a) magnitude and (b) direction of the net magnetic field B→ at P for the indicated current directions? What are the (c) magnitude and (b) direction of B→ if i1 is reversed?

Figure shows two current segment . The lower segment carries a current of i1=0.40A and includes a semicircular arc with radius 5.0 cm, angle 180∘ , and center point P The upper segment carries current i2=2i1 and includes a circular arc with radius 4.0 cm, angle 120∘ and the same center point P. What are the (a) magnitude and (b) direction of the net magnetic field B→ at P for the indicated current directions? What are the (c) magnitude and (b) direction of B→ if i1 is reversed?

AB and CD are long straight conductor and center point P The upper segment carries current i2=2i1 and includes a circular arc with radius 4.0 cm angle 180∘ carrying a current I. The magnetic field at the midpoint of BC is distance d apart Figure shows two current segment . The lower segment carries a current of i1=0.40A and includes a semicircular arc with radius 5.0 cm