Medium MCQ +4 / -1

Two bulbs rated 100 W, 220 V and 60 W, 220 V are connected in series across 220 V. Which bulb glows brighter?

  1. A 100 W bulb
  2. B 60 W bulb Correct answer
  3. C both equal
  4. D neither — both are off

Solution

In series, same current; higher-$R$ (smaller-wattage) bulb dissipates more: 60 W glows brighter.

About this question

Subject: Physics · Chapter: Current Electricity · Topic: Electrical Power

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