- #1
BroIIy
- 6
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Hello, i just got done ranting on Q#1 (its in another post, and I am still in a ranting mode) and was about to go to bed for the day, when i figured "well heck i have been working on these 2 questions for 9 hours and have made almost no progress, asking the people in my class for help is like throwing a brick into the ocean and waiting for it to float, and my 1st Question (that i posted here) already had someone actually try and help me (which is a lot more help than what i have received through the past 30 chapters so far...) " so... i figure before i pass out for the day i will post this 2nd question, for 2 reasons... 1) there is a very high chance that by myself i will miss this question, even though each chapter has several questions and point wise it won't really hurt which leds to reason #2) after i do miss it, i will already be on the next deadline to complete the next chapter (we go through a chapter a day) and i will more than likely never figure out WHY i missed it (again referring to the brick story) i guess i can add a 3rd reason being that, well heck you guys are actually very helpfull
A long, straight wire carries a current I = I0 cos(220πt), where t is time in seconds. Two sides of a fixed rectangular loop are 8.5 cm long and are parallel to the wire; the other sides are 0.80 cm long. The nearest long side is 2.0 cm from the wire. What is I0 if the maximum emf induced in the loop is 1.3 µV? (Ignore the small variation of the magnetic field across the loop and calculate any B values at the location where the loop is nearest the wire.)
sry...
there is a similar question in one of my books but it is slightly different. in which case i attempted to use it to obtain the answer but it didnt work out (here is what i tried)
R = .085
L = .008
x = .02
E = 1.3E-6
w = 220*pi
E / (( u_o * R ) / (2*pi) * ( w * ln( (x+L) / x ) * cos(w) ) = I
other than that, i am at a loss of thought
Homework Statement
A long, straight wire carries a current I = I0 cos(220πt), where t is time in seconds. Two sides of a fixed rectangular loop are 8.5 cm long and are parallel to the wire; the other sides are 0.80 cm long. The nearest long side is 2.0 cm from the wire. What is I0 if the maximum emf induced in the loop is 1.3 µV? (Ignore the small variation of the magnetic field across the loop and calculate any B values at the location where the loop is nearest the wire.)
Homework Equations
sry...
The Attempt at a Solution
there is a similar question in one of my books but it is slightly different. in which case i attempted to use it to obtain the answer but it didnt work out (here is what i tried)
R = .085
L = .008
x = .02
E = 1.3E-6
w = 220*pi
E / (( u_o * R ) / (2*pi) * ( w * ln( (x+L) / x ) * cos(w) ) = I
other than that, i am at a loss of thought