What is the minimum number of bulbs each marked 60 W,40V that can work safety when connected in series with a 240 V supply

Options :
  1. 4
  2. 8
  3. 6
  4. 7
Answer and Explanation :-

Answer: Option 3


Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : Which of the following is immaterial for a fuse wire?

Next Question : In strong electrolytes the electrolytes are -------- in their solutions

Click here for online test on Electrostatics


 (Getemail alerts when others member replies)

More questions and answers on Indian History :-

He was one of the numerous and varied legion of dullards, of half-animated abortions, conceited, half-educated coxcombs, who attach themselves to the idea most in fashion only to vulgarize it and who caricature every cause they serve, however sincerely.
-Fyodor Dostoyevsky Crime and Punishment