Choose the One Alternative That Best Completes the Statement or Answers

question 296

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
-The current I, in amperes, flowing through a particular ac (alternating current) circuit at time t seconds is $$I = 220 \sin ( 65 \pi t )$$ What is the period and amplitude of the current?

• A) period \(= \frac { \pi } { 120 }\) second, amplitude \(= 60\)
• B) period \(= \frac { 1 } { 30 }\) second, amplitude \(= 120\)
• C) period \(= 60 \pi\) seconds, amplitude \(= \frac { 1 } { 30 }\)
• D) period \(= \frac { 1 } { 480 }\) second, amplitude \(= 480\)

Distinguish between different types of oligopoly models such as Cournot, price leadership, and collusion.

Understand the significance of the Five Forces Model in determining market structure.

Interpret the role of concentration ratios in evaluating industry market structure.

Comprehend the market dynamics and outcome under a colluding oligopoly.

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