Physicsmedium · Past Paper
Two bulbs, 60W and 100W, are connected in series. Which one will glow brighter?
A60W bulb
B100W bulb
CBoth same
DNeither will glow
✓ Correct Answer: A — 60W bulb
In series, the 60W bulb has higher resistance and thus higher voltage drop and power dissipation (P=I^2R).
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