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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A long straight non – conducting string carries a charge density of 40 muC/m. It is pulled along its length at a speeed of 300 m/s . What is the magnetic field at a normal distance of 5 mm from the moving string ?

A long straight non – conducting string carries a charge density of 40 muC/m. It is pulled along its length at a speeed of 300 m/s . What is the magnetic field at a normal distance of 5 mm from the moving string ?

Find the magnetic field at the origin in the figure shown in figure.