physics

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A student conducted an experiment to determine the resistance of a lightbulb. while performing the experiment the student noticed that the lightbulb began to glow and became brighter as she increased the voltage. of the factors affecting resistance, which factor caused the greatest change in the resistance of the bulb during her experiment?

im not sure about the answer...is it voltage, temperature, or the resistance?

temperature affected the bulb greatly.

i need help with energy

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