A Coil Is Placed in a Magnetic Field and Has

question 1

Multiple Choice

A coil is placed in a magnetic field and has a flux Φ_B through it.The coil is stressed so that its area reduces to 60% of its original value.If the plane of the coil stays the same and the flux through it remains the same,how must the magnetic field change?

• A) It must increase by 60%.
• B) It must increase by 120%.
• C) It must decrease by 40%.
• D) It must increase by 67%.

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Definitions:

Production Function

A mathematical model that describes the relationship between the quantity of output produced and the quantities of inputs used in production.

Returns To Scale

An economic concept describing how the output changes in response to a proportional change in all input factors.

Marginal Product

The additional output that is produced by using one more unit of a particular input, holding all other inputs constant.

Factor X

Factor X is a placeholder term used to denote an unknown or unspecified factor in an equation or scenario.