Question

Consider an electron with initial velocity 1 m/s in the x direction. We turn on an electric field of -1 V/m in the x direction. What will be the final velocity of the electron?

1) 0 m/s
2) 1 m/s
3) -1 m/s
4) Cannot be determined

Answer 1

The question asks about the final velocity of an electron in an electric field. However, without the duration or distance over which the electric field is applied, it is impossible to determine the final velocity of the electron, and thus the answer to the question cannot be determined with the information provided.

Step-by-step explanation:

The question asks what the final velocity of an electron will be after it is introduced into an electric field of -1 V/m when it initially has a velocity of 1 m/s. To solve this problem, we need to understand that the electron will accelerate under the influence of the electric field. The direction of the acceleration will be opposite to the electric field because the electron carries a negative charge. However, the problem does not provide enough information to determine the final velocity. Key factors such as the duration for which the electric field is applied and the distance over which the electron moves are missing, and these are necessary to calculate the change in velocity due to acceleration.