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

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Why is it necessary to keep the bulb type the same in an experiment on voltage and brightness?

Answer and explanation

Correct answer: Because different bulbs may produce different brightness

Different bulbs may have different ratings so the same bulb should be used. In exams treat apparatus as a controlled variable.

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Controlled-Variable Bulb-Type Brightness 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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