Question

A student wants to know: “How does the number of lightbulbs affect current in a series circuit?” Identify the independent and dependent variables in the experiment.Group of answer choicesThe independent variable is current and the dependent variable is the number of lightbulbs.The independent variable is the number of lightbulbs and the dependent variable is current.The independent variable is the number of lightbulbs and the dependent variable is series.The independent variable is series and the dependent variable is the number of lightbulbs

Answer 1

2nd option: The independent variable is the number of lightbulbs and the dependent variable is current.

Explanation:

A dependent variable represents a quantity whose value depends on how the independent variable is changed. The dependent variable is the amount of money you get, since the amount of money you earn depends on the number of tasks you do.

Knowing the above and the statement, we can determine that the current depends on the number of lightbulbs. This means that the dependent variable is the current and the independent variable is the number of lightbulbs.

Therefore, the correct answer is 2nd option: The independent variable is the number of lightbulbs and the dependent variable is current.