Two Long Parallel Wires Carry Currents of 20 a and 5.0

question 126

Multiple Choice

Two long parallel wires carry currents of 20 A and 5.0 A in opposite directions.The wires are separated by 0.20 m.What is the magnitude of the $\vec { B }$ field midway between the two wires? (μ₀ = 4π × 10^-7 T ∙ m/A)

• A)1.0 × 10^-5 T
• B)2.0 × 10^-5 T
• C)3.0 × 10^-5 T
• D)4.0 × 10^-5 T
• E)5.0 × 10^-5 T

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Definitions:

Prisoners' Dilemma

A standard example of a game analyzed in game theory that shows why two individuals might not cooperate, even if it appears that it is in their best interest to do so.

Tit-For-Tat Strategy

A strategy in game theory where a player replicates the opponent's previous action, generally used in reference to cooperation or retaliation.

Cheat

To act dishonestly or unfairly in order to gain an advantage, particularly in contexts like games, exams, or sports.

Payoff Matrix

A table that describes the potential outcomes of a game or decision involving multiple players, showing the payoffs for each strategy combination.