credit. For each problem, you must select one on the 15 equallolls uu ulullllll.
ID: 1388481 • Letter: C
Question
credit. For each problem, you must select one on the 15 equallolls uu ulullllll. Problem Statements a. A single loop of wire with a current of i 2.3mA is placed in an external magnetic field of magnitude 2.3mT. If the area vector of the loop is at an angle of 270 what will be the torque on the loop. ANSWER: b. A loop of wire, with resistance R, is placed in an external B field that is allowed to change. Calculate the voltage induced by the changes. ANSWER: An electromagnetic field travels through a g B material with refractive index n. Calculate 2urr the change in wavelength due to the material. ANSWER: d. An electron has velocity v 2.3.10 m/s and passes through an external magnetic field B" 4.5T. Calculate the force on the electron. sin (kr tot ANSWER: e. If a circular coil of 145 turns has a radius of 7.34 cm, calculate the current that results in a magnetic dipo moment with a magnitude of 3.40A n Ex B ANSWER:Explanation / Answer
a) b) T = mue cross B
b) j) emf = -N*dphi_B/dt
c) o) lamda_n = lamda/n
d) a) FB = q*(v cross B)
e) c) mue = N*i*A*n
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