A 0.70-m radius cylindrical region contains a uniform electric field that is parallel to the axis and is increasing at the rate 5.0 *10¹² V/m.s.The magnetic field at a point 1.2 m from the axis has a magnitude of:

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The magnetic field at a distance from the axis of a cylindrical region with a changing electric field can be found using Ampère's law with Maxwell's addition. The displacement current density is proportional to the rate of change of the electric field. For a point outside the cylindrical region, the magnetic field is determined by the total displacement current through the cross-sectional area of the cylinder. Using the given rate of change of the electric field and the radius of the cylinder, the magnetic field at 1.2 m from the axis is calculated to be approximately 1.1 x 10^-5 T.

A 070-M Radius Cylindrical Region Contains a Uniform Electric Field That