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Please provide deep explaining of concepts, theories, and formulas that apply to each problem. I have a physics final coming up and I need to be prepared, these are the practice questions. thank you.

4. + -/1 points SerCP10 20.P010.vn. My Notes Ask Your Teacher The nexible loop in the figure below has a redius of 12 em and is in a magnetic field of strength 0.14 T. The loop isgsped at points A and B and stretched unt is area is nearly zero. Ir it takes 0.15 s to clase the loop, what is the magnitude of the everege induced emf in it during this Need Help? L.uar」L wth.ul 5. + ㅢ1 points SerCP10 20. Pol My Notes Ask Your Teacher A ire loop of ad s 0.33 m lies so that r exte nal magnetic field of m agnitude 0.31 T i p pendicul to th· leep. The field eve ses its direction, and its magnitude cl ges to 0.15 T in 1.3 s. Find the ognitude of the e age in ed ernf in the loop d ring this time. Need Help? Pead it +-1 points serCP10 20. P014. My Notes Ask Your Teachr In the fgure below what is the direction of the current induced in the resistor a the instant the swich is dosed? o The current out or the page. The current is into the page. No current is present.

Please draw a sketches that will help me visualize the problem and help me solve it as well, thank you.

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