A circular region in an xy plane is penetrated by a uniform magnetic field in the positive direction of the z axis. The field's magnitude B (in teslas) increases with time t (in seconds) according to B = at, where a is a constant. The magnitude E of the electric field set up by that increase in the magnetic field is given by Fig. 30-52 versus radial distance r, the vertical axis scale is set by E_(s) = 310 μN//C, and the horizontal axis scale is set by r_(s) = 4.00 cm. Find a.

A circular region in an xy plane is penetrated by a uniform magnetic f

1.	A circular region in an xy plane is penetrated by a uniform magnetic field in the positive direction of the z axis. The field's magnitude B (in teslas) increases with time t (in seconds) according to B = at, where a is a constant. The magnitude E of the electric field set up by that increase in the magnetic field is given by Fig. 30-52 versus radial distance r, the vertical axis scale is set by E_(s) = 310 μN//C, and the horizontal axis scale is set by r_(s) = 4.00 cm. Find a.
Answer» SOLUTION :0.031 T is

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