Ask now - it's free
67 views
in Electrical Engineering by
What would be the total power drawn from the supply, when two heaters, rated at 1000 W, 250 V each are connected in series across a 250 V, 50 Hz supply? 

(A) 1000 W (B) 500 W (C) 250 W (D) 2000 W

Know someone who can answer this question ? Share this on Facebook Twitter Whatsapp

← Prev Question Next Question →

1 Answer

0 like 0 dislike
by

Answer:B.


One heater 1000W, 250V resistance is 62.5ohm.
Two Series connected heaters so, 62.5+62.5=125ohm.
Current in the series circuit is 250V/125ohm = 2A.
Total power drawn = current2 X R = 22 x 125 = 500W.

Related questions

Want to ask a new question ? :-> Ask Question

Want to help the community by giving answer? :-> Unanswered Questions

Here anyone can ask and answer any question. Get help and can help to any engineering problem including Electrical, Electronics, Mechanical, Telecommunication, Instrumentation, Computer, Mathematics, Physics etc. Get answers to questions. Help is always 100% free!

Categories

...