Multiple choice general knowledge science & technology

A 40 watt bulb and a 100 watt bulb are connected in series to the battery. Which bulb will glow brighter?

  1. Both will glow equally bright

  2. Neither will glow

  3. 60 W

  4. 40 W
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In a series circuit, current is the same through both bulbs. The bulb with higher resistance (the 40W bulb has higher resistance than 100W) dissipates more power (P=I²R), so it glows brighter.

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