Question

Page افت > of 4 Resistance R 4. A square loop of wire with resistance R and side a moves downward and starts entering the constant magnetic field B, att = tz. (See the figure. The loop was outside the field between t = 0 and t =) The loop completely enters the field region and STOPS moving at t = tz. Use the given parameters to put down short answers below. A xxxxx Vi xxxxx x x x x x Att X X X X X a) Is there an induced current in the loop between t = 0 and t = t;? b) What is the time interval between t, and ty? c) What is the change in flux through the loop between t, and ty? d) What is the magnitude of the induced emf between t, and t? x x x x x e) What is the magnitude of the induced current between t, and ty? f) Does the external field point out of or into the loop between t, and t? XXXXX B) To oppose the change in the flux between t, and ty, should the magnetic field of Att ut the induced current point out of or into the loop? * Let a counterclockwise current be positive and a clockwise current be negative: h) "Is the induced current between t, and t, positive or negative? i) Does the flux change through the loop change after t? (ii) Is there an induced current in the loop after tz? Assume that is constant ) 9 & backpace 5 6 7 8 9

Answer 1

1. No current i

PIZ thumb up meed your help لبن point I of the kerop (1) No current induces, zero magnetic field Line Linked with coil. (ii) Time intervell etert, Le) AO=BOA (e) Boa? "A = Anaura² (d) emfa 2 AO bt Boa? Boa2 f) 192 ta-ti I = emf R R (ta-t) point out of the knop Induced current will be clockwise (possitice) NO , no current indices i) No 7) No