A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
Someone who really understands electricity concepts  help me out! I describe the problem in detail on my site
http://www.romakoulikov.com/anotherohmslawquestionthatstumpedme/
anonymous
 5 years ago
Someone who really understands electricity concepts  help me out! I describe the problem in detail on my site http://www.romakoulikov.com/anotherohmslawquestionthatstumpedme/

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0The question focuses on the energy consumed by the lamp, not the entire system. Use the following formulas: \[V = IR\]\[P = I^2R\]\[E = Pt = I^2Rt\] First Situation: Timer has no resistance. Lamp has resistance R. Total Voltage: V Total Resistance: R Total Current: I Resistance of Lamp: R Current through Lamp: I Energy Consumed: E Second Situation: Timer has resistance R. Lamp has resistance R. Total Voltage: V Total Resistance: 2R Total Current: V/2R = I/2 Resistance of Lamp: R Current through Lamp: I/2 Energy Consumed: E/4 Therefore, the energy consumed in the second situation is 1/4 the energy consumed in the first answer. The correct choice is C  it will be 1/4 as great.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Thank you very much physmath96. Got it!
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.