Drift Velocity: the Figure Shows a Steady Electric Current Passing

question 26

Multiple Choice

Drift velocity: The figure shows a steady electric current passing through a wire with a narrow region. What happens to the drift velocity of the moving charges as they go from region A to region B and then to region C?

• A) The drift velocity decreases from A to B and increases from B to C.
• B) The drift velocity increases all the time.
• C) The drift velocity remains constant.
• D) The drift velocity decreases all the time.
• E) The drift velocity increases from A to B and decreases from B to C.

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Definitions:

Mixed Strategy

In game theory, a strategy in which a player randomizes over possible actions, assigning a probability to each.

Nash Equilibrium

A concept in game theory where no player can benefit by changing their strategy while the other players keep theirs unchanged, representing a state of mutual best responses.

Expected Payoff

The anticipated return from an investment, considering all potential outcomes and their probabilities.

Sequential Game

A type of game in game theory where players make their moves one after another, with knowledge of the previous players' moves.