Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > In the shown in the figure AC and BD are straight lines and CED and AFB are semicircular with radii r and 4r, respectively. The centre setip is lying in the same plane. If i is current entering at A what fraction of i will flow in the ACEDB such that resultant magnetic field at O is zero.

In the shown in the figure AC and BD are straight lines and CED and AFB are semicircular with radii r and 4r, respectively. The centre setip is lying in the same plane. If i is current entering at A what fraction of i will flow in the ACEDB such that resultant magnetic field at O is zero.

In the shown in the figure AC and BD are straight lines and CED and AFB are semicircular with radii r and 4r respectively. The centre setip is lying in the same plane. If i is current entering at A what fraction of i will flow in the ACEDB such that resultant magnetic field at O is zero.