what is the effect of changing the length of a piece of copper wire on its resistance? type of wire is the…
what is the effect of changing the length of a piece of copper wire on its resistance? type of wire is the ________ variable in this research question.
Answer
Brief Explanations:
In an experiment, the variable that is kept constant while other factors are changed is the controlled variable. Here, the focus is on how length affects resistance, so the type of wire (copper in this case) is kept the same and is thus a controlled variable.
Answer:
controlled