Magnetic Flux through a Loop Calculation

AI Thread Summary
The discussion centers on calculating the magnetic flux through a loop with given dimensions and magnetic field strengths. The formula for magnetic flux, MF = AB cos theta, is referenced, but the user initially misapplies it by not considering the direction of the magnetic fields. The correct approach involves calculating the flux for each region separately and accounting for the opposing directions of the magnetic fields. The user realizes their mistake after receiving guidance about the fields pointing in opposite directions. Accurate calculations and direction considerations are crucial for determining the correct magnetic flux.
BuBbLeS01
Messages
602
Reaction score
0
Simple Magnetic Flux Prob...

Homework Statement


2hrljjl.jpg


What is the magnitude of magnetic flux through the loop? (a=22 cm, b=27 cm, B1=1.2 T, B2=1.7 T.)


Homework Equations


MF = AB cos theta


The Attempt at a Solution


MF = AB
So wouldn't I just do ((0.2m * 0.2m) * 1.2) + ((0.22m * 0.27m) * 1.7)
but that's not getting me the right answer...what am I doing wrong?
 
Physics news on Phys.org
Remember that the fields point in opposite directions in the two regions...
 
oh yea thank you!
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Back
Top