An Ordinary Magnetic Compass Is Placed Flat on the Ground

question 8

Multiple Choice

An ordinary magnetic compass is placed flat on the ground.A wire carrying a large current i from east to west is placed directly above the compass.The end of the compass needle marked "N" will point:

• A)north
• B)south
• C)east
• D)west
• E)the compass will act as an electric motor, hence the needle will keep rotating

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Definitions:

Efficiency

The optimal allocation and use of resources to produce goods and services in the most cost-effective and waste-free manner.

P > MC

Indicates a scenario in price (P) is greater than marginal cost (MC), suggesting that a firm could potentially increase profits by increasing production since each additional unit produced costs less than the price it would sell for.

Monopoly

A market structure in which a single seller controls the entire market for a good or service, with no close substitutes.

Monopoly Model

A market structure where a single seller dominates the market, facing no competition, resulting in high prices and restricted output.