As Shown in the Figure, a Straight Wire Carries a Steady

question 80

Multiple Choice

As shown in the figure, a straight wire carries a steady current $I$ . A metal bar is in contact with a pair of rails and is in upward motion with velocity of magnitude $v$ . The polarity of the induced emf in terminals $X$ and $Y$ is

• A) \(Y\) is positive and \(X\) is negative.
• B) \(X\) and \(Y\) are at the same potential.
• C) \(X\) is positive and \(Y\) is negative.

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Definitions:

Future Growth Rate

An estimate of how fast an economy, company, or investment is expected to grow in the future.

Division of Output

The allocation or distribution of the total goods and services produced among different sectors, markets, or consumers.

Marginal Benefits

The additional benefits received from consuming one more unit of a good or service.

Marginal Costs

The rise in overall expenses that occurs when the production amount is increased by a single unit.