A uniform current is flowing along the length of an infinite, straight, thin, hollow cylinder of radius R. The magnetic field B produced at a perpendicular distance d from the axis of the cylinderis plotted in a graph. Which of the following figures looks like the plot?

A uniform current is flowing along the length of an infinite, straight

1.	A uniform current is flowing along the length of an infinite, straight, thin, hollow cylinder of radius R. The magnetic field B produced at a perpendicular distance d from the axis of the cylinderis plotted in a graph. Which of the following figures looks like the plot?
Answer» Solution :Applying Ampere's circuital law, magnetic field at a POINT OUTSIDE the cylinder and located at a perpendicular distance d from its axis, `B=(mu_(0)I)/(2pid)" if "dgtR` If d=R then, `B=(mu_(0)I)/(2piR)` If `dltR,B=0` [SINCE no CURRENT flows inside a HOLLOW cylinder] `:.Bprop(1)/(d)`

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A uniform current is flowing along the length of an infinite, straight, thin, hollow cylinder of radius R. The magnetic field B produced at a perpendicular distance d from the axis of the cylinderis plotted in a graph. Which of the following figures looks like the plot?

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