At What Frequency Is the Reactance of A $20.0 - \mathrm { mH }$

question 158

Multiple Choice

At what frequency is the reactance of a $20.0 - \mathrm { mH }$ inductor equal to $120 \Omega$ ?

• A) \(318 \mathrm {~Hz}\)
• B) \(1110 \mathrm {~Hz}\)
• C) \(637 \mathrm {~Hz}\)
• D) \(955 \mathrm {~Hz}\)
• E) \(796 \mathrm {~Hz}\)

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Definitions:

Fixed Cost

Expenses that do not change with the level of output or sales, such as rent or salaries.

Variable Cost

Expenses that change in proportion to the level of production or sales activities of a company, such as raw materials and direct labor costs.

Producer Surplus

The difference between what producers are willing to accept for a good versus what they actually receive, typically represented by an area on a graph.

Supply Curve

A graph displaying the relationship between the price of a good or service and the quantity of that good or service that a supplier is willing and able to provide, holding all else equal.