The Quantity $Q$ Of Charge in Coulombs $C$ That Has Passed Through a Point in a Wire Up

question 28

Multiple Choice

The quantity $Q$ of charge in coulombs $C$ that has passed through a point in a wire up to time $t$ (measured in seconds) is given by
$Q ( t ) = t ^ { 3 } - 3 t ^ { 2 } + 4 t + 3$ Find the current when $t = 1 \mathrm {~s}$ .

• A) 24
• B) 15
• C) 18
• D) 26
• E) 1

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Definitions:

Consumer Price Index

A measure that examines the weighted average of prices of a basket of consumer goods and services, used as an indicator of inflation.

Annual Rate

A projection of a rate over a period of one year, often used in the context of interest rates, inflation, or growth rates.

Price Index

A measure showing the average level of prices for a specific set of goods and services over a period, indicating inflation or deflation.

Base Year

A specific year chosen as a point of reference or comparison for financial or economic data.