Please help ( it’s a quiz)))

The correct answer is -

The independent variable: different batteries of different voltage.

The dependent variable: measurement of the current in an electrical circuit.

Explanation:

the Independent variable in any scientific experiment is a variable that is changed to see the effect on the desired result or cause a difference in the dependent variable. Whereas the dependent variable that is affected by the manipulation or change made in the independent variable, by measure it to see the effect of the changes made in the independent variable or factor.

In this experiment, the voltage of the batteries is changed to see the effect on the change in the current in a circuit thus the independent variable is different batteries of different voltage and the dependent variable is the measurement of the current in an electrical circuit.