The circular region shown with a radius of R = 0.50 m has an electric field passing through it in the upward direction. The electric field starts with a value of 150 V/m, but steadily (and quickly) is reduced to zero over a 3.0 ms time span. After the 3.0 ms, the electric field remains zero. You wonder if you will be able to detect the magnetic field induced during this 3.0 ms time span. Draw a diagram of the electric field in this region, and a graph showing the electric field strength as a function of time. For the 3.0 ms time span in which the electric field is changing, 

Calculate the strength of the induced magnetic field at the radius r = R. Would you be able to detect this magnetic field with a compass? Why or why not? 

Draw the direction of the induced magnetic field at this radius. Justify the direction you chose. Em 

Find the displacement current through the circular region. For full credit, remember to follow the steps described on the cover sheet

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Solutions a From maxwell equation B dl 0 0 Etda B dl 0 0 Et R 2 B 2R 0 0 Et R 2 B R2c ... View the full answer