Maple TA Quiz 19.1

View previous topic View next topic Go down

Maple TA Quiz 19.1

Post  dan on Thu Feb 19, 2009 12:24 am

Did anyone get #3 and 4...i cannot seem to get the equation right...i looked at the lecture notes but its not clicking....pls help

dan
Guest


Back to top Go down

Re: Maple TA Quiz 19.1

Post  kyung wo on Thu Feb 19, 2009 10:11 pm

1) cos0 *(magnetic field)*(pi*r^2) … answer is positive… convert the radius from centimeter to meters.
2) ((magnetic field)*(area))/2 … answer is negative
3) 1/given number … answer is negative
4) (L*v*magnetic field)/resistance … answer is negative… convert centimeter to meters

kyung wo
Guest


Back to top Go down

Re: Maple TA Quiz 19.1

Post  Kathleen on Fri Feb 20, 2009 6:13 pm

The #2 above is not correct, follow along with sheet 3:

magnetic flux = B*A
The induced emf is = - (magnetic flux/change in time)
so, basically instead of dividing by the 2 they said to divide by above, you divide by the number of seconds given in your question.

Kathleen

Posts : 42
Join date : 2008-12-18

View user profile

Back to top Go down

question 2

Post  12345 on Sun Feb 22, 2009 6:37 pm

no matter how many times i've tried number 2 I can't get it rite! please help!! ><

12345
Guest


Back to top Go down

#2

Post  super mo on Sun Feb 22, 2009 7:14 pm

A= 43.51cm^2 * 0.0001m= 0.04351m^2
B= 0.1425
deta t= 0.2014s
epsilon= (B*A)/delta t
answer -0.00308

super mo
Guest


Back to top Go down

question 2

Post  12345 on Sun Feb 22, 2009 8:38 pm

thanks i got it! =)

12345
Guest


Back to top Go down

Re: Maple TA Quiz 19.1

Post  mgmt on Wed Feb 25, 2009 11:33 am

For number 4 why do we divide by resistance? I got the answer from the equation, and I see the equation int he lecture notes,, but there's no resistance in it, so how did you figure that one out? Thanks.

mgmt
Guest


Back to top Go down

question 4

Post  physics1 on Wed Feb 25, 2009 4:48 pm

problem 4 is not coming out right for me, I am going over the notes, but i keep getting it wrong

physics1
Guest


Back to top Go down

Re: Maple TA Quiz 19.1

Post  Sponsored content


Sponsored content


Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum