aliensbrain
  • Home
  • Study
  • Quizzes
  • 🎤AI Practicefree
  • Notebooks
  • Community
  • Sign in
  • Energy and Power
  • A light bulb uses 500 J of energy in 5 seconds. What is i...
Multiple choice

A light bulb uses 500 J of energy in 5 seconds. What is its power? (Remember: P = E ÷ t)

  1. 50 watts

  2. 500 watts

  3. 10 watts

  4. 100 watts

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Using the formula P = E/t, 500 J / 5 s = 100 Watts.

Keep practicing — related questions

  • An LED light uses 150 J of energy in 3 seconds. What is its power?
  • Directions: Make sentence from the words given in each item in a jumbled order. use physical (A)/ children ...
  • Directions: Find one word that can be used in place of the given phrase: obsession with having and using po...
  • Directions: Four parts of the sentences given below have been underlined. Identify the part having an error...
  • Directions: Select the numbered part that bears an error of grammar or diction. If there is no error, mark ...
  • Directions: Identify the error in the sentence and mark the correct choice. Choice E means 'no error'. It i...
  • Directions: Identify the error in the sentence and mark the correct option. Option E means 'no error'. Indi...
  • Directions: Identify the error in the sentence and mark the correct choice. Choice E means 'no error'. Rana...
Play the full quiz 🎤 Practise this topic out loud

Practice this topic

  • Power, Energy, and Efficiency (463 questions)
Advertisement
© Aliensbrain | all rights reserved
  • About
  • Contact
  • Terms and Condition
  • Privacy Policy