Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
JenniferSmart1
Group Title
Why is this true?
\[\vec E \cdot d \vec l=E \hat i \cdot (dx \hat i +dy \hat j +dz \hat k)=E dx\]
I understand the first part
\[\vec E \cdot d \vec l=E \hat i \cdot (dx \hat i +dy \hat j +dz \hat k)\] but how does that equal Edx?
 one year ago
 one year ago
JenniferSmart1 Group Title
Why is this true? \[\vec E \cdot d \vec l=E \hat i \cdot (dx \hat i +dy \hat j +dz \hat k)=E dx\] I understand the first part \[\vec E \cdot d \vec l=E \hat i \cdot (dx \hat i +dy \hat j +dz \hat k)\] but how does that equal Edx?
 one year ago
 one year ago

This Question is Closed

JenniferSmart1 Group TitleBest ResponseYou've already chosen the best response.1
@zepdrix @hartnn
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
i and j are perpendicular i and k are perpendicular
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
i.i = i^2 = 1 i.j =0 i.k=0
 one year ago

JenniferSmart1 Group TitleBest ResponseYou've already chosen the best response.1
I'm sorry...but how did you determine that they were perpendicular?
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
i , j and k are standard unit vectors. i is along x direction j is along y direction k is along z direction and axes are perpendicular to each other, right ?
 one year ago

JenniferSmart1 Group TitleBest ResponseYou've already chosen the best response.1
yes
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
dw:1361080799293:dw any more doubts ?
 one year ago

JenniferSmart1 Group TitleBest ResponseYou've already chosen the best response.1
ahhhh.....nope...no more doubts =D
 one year ago
See more questions >>>
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.