Solution to task 466 from Chertov´s for extramural stud

Solution to task 466 from Chertov´s for extramural stud

466. A wire loop with a diameter of D = 5 cm and a resistance of R = 0.02 Ohm is in a uniform magnetic field (B = 0.3 T). The plane of the turn makes an angle φ = 40 ° with the induction lines. What charge Q will flow through the loop when the magnetic field is turned off?