Earth's lower atmosphere contains negative and positive ions that are produced by radioactive elements in the soil and cosmic raysfrom space. In a certain region, the atmospheric electric field strength is 98.6 V/m and the field is directed vertically down. This fieldcauses singly charged positive ions, at a density of 907 cm 3, to drift downward and singly charged negative ions, at a density of 457cm3, to drift upward (see the figure). The measured conductivity of the air in that region is 3.11 x 10-14 (0-m)-1. Calculate (a) themagnitude of the current density and (b) the ion drift speed, assumed to be the same for positive and negative ions.(a) Number i(b) Number iUnitsUnits4

Atmospheric electric field strength ; E=98.6 V/m positive charge ion density; n+ =907cm-3 negative…

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