When a Switch Is Closed, Completing an LR Series Circuit

question 6

Multiple Choice

When a switch is closed, completing an LR series circuit, the time needed for the current to reach one half its maximum value is ____ time constants.

• A) 0.250
• B) 0.500
• C) 0.693
• D) 1.00
• E) 1.44

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Definitions:

Demand Curve

A graph showing the relationship between the price of a good and the quantity of the good that consumers are willing to buy.

Midpoint Formula

A method used in geometry to find the midpoint or the center point between two points on a line segment.

Absolute Value

The non-negative value of a number regardless of its sign.

Elasticity

a measure of how much the quantity demanded or supplied of a good responds to a change in one of its determinants, such as price.