question_answer

Laxmi and her mother went to the market to purchase some household articles. Laxmi's mother was going to purchase 100 W electric bulb. Laxmi advised her to purchase CFL. She told her mother that it will consume less amount of power and will save electricity. (a) What qualities do you notice in Laxmi? (b) A 100 W bulb and a 500 W bulb are joined in parallel to the mains. Which bulb will draw more current?  

Answer:

(a) Laxmi is aware, has presence of mind, concern for family and capable to apply knowledge.                   (1) (b) Power (P) = Potential difference (V) x Current (I)   Thus, 500 W bulb will draw more current.                                               (2)