Question

Assume that I = 4.8A and d = 2.2cm .What is the strength of the magnetic field at the center of the loop in the figure?

Answer 1

i know that the loop is 4pi*10^-7*4.8/2.2 but i think i have to add in the wire. problem is, i don't know the length of the wire. so my munot*i/2r....i don't know how we know what r is for the wire itself. the r for the loop is 1.1, but the wire is straight....no r. i'm lost.

Answer 2

B = mu I / d

see here, 2nd item on page:

http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/curloo.html

Answer 3

i tried that. 4pi*10^-7*4.8/2.2. i said that above. that answer doesn't work

Answer 4

or rather i did .022

Answer 5

i get 274 10^-6 T

Answer 6

2.74*10^-6 and it's not correct

Answer 7

and neither is 2.74*10^-4

Answer 8

U know
d=2.2cm=?m

Answer 9

U know
100cm=1m
Right?

Answer 10

U hv to cobvert cgs to mks. Unit

Answer 11

*convert

Answer 12

what is cgs and mks? and yes, i knew to make it .022 meters. i divided it by .022, just typed it in here wrong.

Answer 13

Cgs=cm gm sec

Answer 14

Mks=m kg sec

Answer 15

Right?

Answer 16

B=mew not*i/(2r)

Answer 17

I think u got correct result!!!!

Answer 18

i guess. never heard those units. but either way, i still did 4*10^-7 *4.8/.022 and mastering physics says it's wrong. not sure why.

Answer 19

oh, times pi. forgot to add in pi. it's pretty much bedtime for me so i'm tired.

Answer 20

Mew not=4*pi*10^-7

Answer 21

yeah, i know. just forgot to type it in here. did in my calculator though

Answer 22

Wts the wrong with ur result????!!!!!

Answer 23

no idea. just says inocrrect.

Answer 24

I think u should b correct!!!!!!!

Answer 25

k. i'll email the teacher. time for bed for me. i'm falling asleep.

Answer 26

Ok.. bye

Answer 27

Glad to chat with u