Final answer:
The magnetic field in the figure is decreasing at a rate of 0.3 T/s. To calculate the electric field as a function of distance, additional information or equations are needed.
Step-by-step explanation:
In the given scenario, the magnetic field in the figure is decreasing at a rate of 0.3 Tesla per second (0.3 T/s). This implies that the strength of the magnetic field is decreasing over time.
For example, if the initial magnetic field strength is 1.0 T, after 1 second it would be 0.7 T, after 2 seconds it would be 0.4 T, and so on.
To calculate the electric field as a function of distance from the geometric center of the region, you would need additional information or equations related to the specific setup of the electromagnetic system.