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

question 136

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 ν. The polarity of the induced emf in terminals X and Y is

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

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Definitions:

Total Utility

The total satisfaction or benefit a consumer derives from consuming a particular quantity of goods or services.

Utility Schedule

A table showing the different levels of satisfaction or utility that a consumer derives from consuming different amounts of a good or service.

Worth

The value or importance of something, often measured in terms of money or utility.

Marginal Utility

The additional satisfaction or utility received by a consumer from consuming one more unit of a good or service.