Answer : The average speed of the electron during this time is 1000 m/s
Explanation :
Average speed : It is defined as the ratio total distance to total time.
Formula used :

As per question,
Total distance traveled by electron = 2 m
Total time taken by electron = 0.002 s
Now put all the given values in the above formula, we get:


Therefore, the average speed of the electron during this time is 1000 m/s