In a light bulb, much of the electrical energy is degraded to:

  1. kinetic energy of the bulb
  2. heat
  3. chemical energy
  4. nuclear energy
Answer

B) heat

Only some becomes light, which is also eventually absorbed as heat. SLO P-11-C-20 · Understanding

Physics MCQ · More Heat Engines, Second Law and Entropy MCQs · Practise