A Closed Flat Loop Conductor with Radius $2.0 \mathrm {~m}$ Is Located in a Changing Uniform Magnetic Field

question 179

Multiple Choice

A closed flat loop conductor with radius $2.0 \mathrm {~m}$ is located in a changing uniform magnetic field. If the emf induced in the loop is $2.0 \mathrm {~V}$ , what is the rate at which the magnetic field strength is changing if the magnetic field is oriented perpendicular to the plane in which the loop lies?

• A) \(0.080 \mathrm {~T} / \mathrm { s }\)
• B) \(2.0 \mathrm {~T} / \mathrm { s }\)
• C) \(1.0 \mathrm {~T} / \mathrm { s }\)
• D) \(0.16 \mathrm {~T} / \mathrm { s }\)

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Definitions:

Average Variable Costs

The total variable costs (costs that change with output level) divided by the quantity of output produced.

Average Costs

The total cost of production divided by the number of goods produced, a measure of cost efficiency.

Shutting-Down

A short-term decision by a firm to cease operations while it still has the option to resume in the future, often due to unfavorable market conditions.

Average Costs

The cost per unit is determined by dividing the total production cost by the number of units manufactured.