A cylinderical conductor of radius R is carrying constant current. The plot of the magnitude of the magnetic field, B with the distance, d from the centre of the conductor , is correctly represented by the figure:

A cylindrical conductor of radius R is carrying a constant current. The plot of the magnitude of the conductor is correctly represented by the figure:

The correct plot of the magnitude of magnetic field vecB vs distance r from centre of the wire is, if the radius of wire is R

The correct plot of the magnitude of magnetic field vecB vs distance r from centre of the wire is, if the radius of wire is R

Find the magnitude of the magnetic field at the origin O due to very long conductor carrying current I of the shape as shown in figure.

A thin, straight conductor lies along the axis of a hollow conductor of radius R . The two carry equal currents in the same direction. The magnetic field B is plotted against the distance r from the axis. Which of the following best represents the resulting curve?

The graph showing the variation of the magnetic field strength (B) with distance (r) from a long current carrying conductor is.