The drift velocity of electrons denotes the average speed at which free electrons move in a conductor when subjected to an electric field. When a voltage is applied to a conductor, the resulting electric field accelerates free electrons, causing them to move in the direction of the electric field.
Yet, collisions with atoms and other electrons within the conductor prevent free electrons from maintaining a constant velocity. Instead, they exhibit a small, average velocity in the direction of the electric field, termed the drift velocity.
The movement of free electrons in a conductor is impeded by collisions with atoms and other electrons, preventing them from maintaining a constant velocity. Instead, they exhibit a small, average velocity in the direction of the electric field, known as the drift velocity.
Therefore, the drift velocity of electrons is directly proportional to the voltage applied across a conductor.
So, the correct option is (B) : Voltage applied.
The prisoners in the concentration camps in World War-II had lost faith in the future. Being in the camp, I felt disgusted with the state of affairs and I forced my thoughts to turn to another subject. ”Suddenly, I saw myself standing on the platform of a well-lit, warm and pleasant lecture room. In front of me, the attentive audience were seated in comfortable upholstered seats. I saw myself giving a lecture on hope, optimism, and resilience under difficult circumstances.” Suddenly, all that oppressed me stopped giving me pain and distress. This practice was so impactful that I could succeed in rising above the situation and the sufferings of the moment.”
Just as individuals compare themselves with others in terms of similarities and differences with respect to what they have and what others have, individuals also compare the group they belong to with groups of which they are not a member. It has been found that groups are more likely to take extreme decisions than individuals alone. Suppose there is an employee who has been caught taking a bribe or engaging in some other unethical act. His/her colleagues are asked to decide what punishment he/she should be given. They may let him/her go scot-free or decide to terminate his/her services instead of imposing a punishment which may commensurate with the unethical act he/she had engaged in. Whatever the initial position in the group, this position becomes much stronger as a result of discussions and interaction in the group.