Physics
Class 10
Ohm's law
Why does a bulb glow brighter when connected directly to a battery than when connected via a resistor?
1 answers
50 votes
1 Answers
uniboardhub
4 months ago
Ohm's law: V = IR. Adding a resistor reduces the current (I), meaning less energy reaches the bulb, so it glows dimmer. Direct connection = maximum current = brighter glow!
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