The Voltage V Across a 4 H Pure Inductor Varies

question 8

Multiple Choice

The voltage v across a 4 H pure inductor varies with time t according to the equation v = 18 sin (2π x
1000t - 30º) V. The current through the capacitor will thus be:

• A) i = 18 sin (2π x 1000t - 30º) mA
• B) i = 18 sin (2π x 1000t - 120º) mA
• C) i = 0.72 sin (2π x 1000t - 30º) mA
• D) i = 0.72 sin (2π x 1000t - 120º) mA

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Definitions:

Sample Size

The number of observations or data points selected from a population for the purpose of statistical analysis.

Confidence Interval

A stretch of values, resulting from sample analytics, projected to envelop the value of a hidden attribute in a population.

Population Proportion

The ratio of members within a subset to the total number of members in a population.

Stratified Random Sampling

A method of sampling that involves dividing a population into smaller groups, known as strata, that share similar characteristics, and then randomly selecting members from each stratum for study.