Answer
In water, ions move with constant velocity in the presence of an electric field. It is similar to a body falling in air. Both of these objects will reach their terminal velocity due to friction. The ions in water experience friction due to other water molecules. It will be accelerated for 10 nanoseconds before reaching terminal velocity. Thus, an ion in water can move with constant velocity in an electric field.
Work Step by Step
In water, ions move with constant velocity in the presence of an electric field. It is similar to a body falling in air. Both of these objects will reach their terminal velocity due to friction. The ions in water experience friction due to other water molecules. It will be accelerated for 10 nanoseconds before reaching terminal velocity. Thus, an ion in water can move with constant velocity in an electric field.