Question

A circular loop of wire with radius 0.0250 m and resistance 0.340 is in a region of spatially uniform magnetic field, as shown in the following figure(Figure 1). The magnetic field is directed into the plane of the figure Att =0, B = 0. The magnetic field then begins increasing, with B(t) =(0.400 T/S) Part A What is the current in the loop (magnitude) at the instant when B = 1.50 T? Express your answer with the appropriate units. Figure < 1 of 1 μΑ ? X X х B 7- 20.8 mA Х X X X X You have already submitted this answer. Enter a new answer No credit lost. Try again х X X X Submit Previous Answers Request Answer Х Part B х What is the direction of the current in the loop? div 29 w RAA

Answer 1

Sel- Given - r = 0.025 m -R = 0.3402 x Blt) = 0.45/s33 Х X X (0) 5 = ? when B=1.5T from, Faraday's Law of Elechongnetisms a time varying magnetic field generates field and vice vusal at states that when the Magnetic flaca through loop changes with times it induces an emf in the look whose magnitude a greu sy. HELP where p = fr. di mag flux ket & when 1 = 1.5T dt Now, B(+) 1.5 t? 0.4 +3 0.4 t3 1.5 0.4 (3.750 1. 55 sec TY t t As, to BLt) XA 0.4 +² x Tr2 0.4 Z3 X 5 (0,025) TAR

fem fransdog's law, Es de dt d [0.443 x 1 (0.025 dt 0.002 356 +2 2.356 ta v my Curing ) t = 1.55 so E = 2.3 56 (1.ss} 5.66 mV I= = Thue E R 5.66 0.34 1.6. 64 mA Aul. (6) Direction f cupent > Clockwise ( Right Fland Rule