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Class 9 Science Exploration: Entering the World of Secondary Science Variables in an experimentMedium

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A student measures bulb brightness at different voltages. What is the independent variable?

Answer and explanation

Correct answer: Voltage

Voltage is deliberately changed so it is the independent variable. In exams identify the changed electrical quantity.

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Voltage Independent-Variable Bulb Variables In An Experiment Exploration: Entering The World Of Secondary Science Exploration Entering The World Of Secondary Science Science Class 9 Mcq

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