Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A wire carrying current i has the configuration as shown in figure.Two semi-infinite straight sections,both tangent to the same circle are connected by a circular arc of central angle θ,along the circumference of the circle,with all sections lying in the same plane.What must θ be for B to be zero at the centre of the circle?

A wire carrying current i has the configuration as shown in figure.Two semi-infinite straight sections,both tangent to the same circle are connected by a circular arc of central angle θ,along the circumference of the circle,with all sections lying in the same plane.What must θ be for B to be zero at the centre of the circle?

A wire carrying current i has the configuration as shown in figure.Two semi-infinite straight sections along the circumference of the circle both tangent to the same circle are connected by a circular arc of central angle θ with all sections lying in the same plane.What must θ be for B to be zero at the centre of the circle?