The Current in a Wire Varies with Time According to the Relation

question 1

Multiple Choice

The current in a wire varies with time according to the relation where I is in amperes and t is in seconds.The number of coulombs that pass a cross section of the wire in the time interval between t = 0 and t = 1/20 s is

• A)2\(\pi\)
• B)4\(\pi\)
• C)40\(\pi\)
• D)4
• E)zero

---

Definitions:

Contingency Table

A table used in statistics to show the frequency distribution of variables, helping to analyze the relationship between two categorical variables.

Test Statistic

A statistic used to determine whether to reject the null hypothesis in significance testing.

Nominal Variables

Categories of data that cannot be quantifiably ranked or ordered, serving as labels or names for distinguishing attributes.

Chi-Squared Test

A statistical test used to determine if there is a significant association between two categorical variables.