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In an experiment, wire length is changed and its electrical resistance is measured. What type of variable is resistance?

Answer and explanation

Correct answer: Dependent variable

Electrical resistance is the outcome measured after changing the length of the wire. Hence, resistance is the dependent variable because its value depends on the independent variable, the wire length. Controlled variables are kept unchanged, such as the material, thickness, and temperature of the wire. Exam tip: the quantity changed is the independent variable, while the measured result is the dependent variable.

Related tags

Science ExperimentVariables In ExperimentDependent VariableElectrical ResistanceWire LengthClass 9 ScienceVariables In An ExperimentExploration: Entering The World Of Secondary Science

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