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Questions and Answers
What happens to the brightness of the bulb when the number of batteries in the torch is increased?
Increases
Why does the brightness of the bulb in the torch decrease gradually when used for a long time?
Current flowing through the bulb depends on the potential difference applied across it.
What is the principle behind the change in brightness of the bulb in the torch according to the text?
Dependence of current on potential difference
Who established the relationship between electric current and potential differences?
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What is the name of the law that relates electric current and potential differences?
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What is the significance of Ohm's law in the field of physics?
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How did Georg Simon Ohm contribute to the understanding of electric current and potential differences?
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