A Pure Inductor Is Connected to an Ac Power Supply $90 ^ { \circ }$

question 305

Multiple Choice

A pure inductor is connected to an ac power supply. In this circuit, the current

• A) leads the voltage by \(90 ^ { \circ }\).
• B) lags the voltage by \(90 ^ { \circ }\).
• C) is in phase with the voltage.
• D) lags the voltage by \(45 ^ { \circ }\).
• E) leads the voltage by \(45 ^ { \circ }\).

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Definitions:

Elastic

Describes a situation in which the quantity demanded or supplied of a good or service changes significantly as its price changes.

Inelastic

A characteristic of goods whereby a change in price leads to a relatively smaller change in the quantity demanded or supplied.

Total-revenue Test

A method used to determine the price elasticity of demand by observing changes in total revenue as a result of price alterations.