A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
When a capacitor has a charge of absolute value 80 µC on each plate the potential difference across the plates is 10 V. How much energy is stored in this capacitor when the potential difference across its plates is 120 V?
 2 years ago
When a capacitor has a charge of absolute value 80 µC on each plate the potential difference across the plates is 10 V. How much energy is stored in this capacitor when the potential difference across its plates is 120 V?

This Question is Closed

arcticf0x
 2 years ago
Best ResponseYou've already chosen the best response.1Do you know how to find the capacitance when charge and voltage are given?

arcticf0x
 2 years ago
Best ResponseYou've already chosen the best response.1Anyway, use q=C*V to find C. Plug it into E=1/2*C*V^2.

pully
 2 years ago
Best ResponseYou've already chosen the best response.0are you sure from this laws :D I applied this rules and the answer is wrong :S

pully
 2 years ago
Best ResponseYou've already chosen the best response.00.48 mJ 58 mJ 0.12 J 0.90 GJ 0.36 J

rajathsbhat
 2 years ago
Best ResponseYou've already chosen the best response.0@pully, are these the options?

rajathsbhat
 2 years ago
Best ResponseYou've already chosen the best response.0when i followed @arcticf0x's method, i got 57.6 mJ

arcticf0x
 2 years ago
Best ResponseYou've already chosen the best response.1http://www.wolframalpha.com/input/?i=1%2F2*%2880*10^%286%29%2F10%29*120^%282%29

ahmedanbar
 2 years ago
Best ResponseYou've already chosen the best response.0i don't understand the answer i have the same question

pully
 2 years ago
Best ResponseYou've already chosen the best response.0Apply this Ahmed q=C*V to find C. Plug it into E=1/2*C*V^2. Then you will get 57.6 mJ
Ask your own question
Ask a QuestionFind 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.