A 40-Ω Resistor Is Connected to a 12-Ω Resistor and This

question 154

Multiple Choice

A 4.0-Ω resistor is connected to a 12-Ω resistor and this combination is connected to an ideal dc power supply with voltage V as shown in the figure. If the total current in this circuit is I = 2.0 A, what is the value of voltage V?

• A) 2.0 V
• B) 3.0 V
• C) 6.0 V
• D) 1.5 V
• E) 8.0 V

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Definitions:

Sample Proportions

The fraction or percentage of observations in a sample that fall into one particular category or class.

Standard Error

The standard deviation of the sampling distribution of a statistic, commonly the mean, indicating the variation of a sample statistic from the population parameter.

Lower Tailed Test

A statistical hypothesis test where the critical area of a distribution is in its lower tail, used to determine if a sample mean is significantly lower than a known or assumed population mean.

Test Statistic

A statistic calculated from sample data, used to determine whether to reject the null hypothesis in a hypothesis test.