Question

Coil 2 Voltn Two coils of wire are aligned with their axes along the 2-axis, as shown in the diagram. Coll 1 is connected to a power supply and conventional current flows clockwise location of coll 2. Col 2 is connected to a voltmeter. The distance between the centers of the cols is 0.18 m. through coติ 1, as seen from the С。ศ 1 has N; = 535 turns of wire, and its radius is Ri = 007 m. The current through coil 1 is changing with time. At , = 0 s, the current through col 1 is 0 = 15 A At r = 0.4 s, the current through co Coil 2 has N 225 turns of wire, and its radius is R20.03 m

Answer 1

T = 0.4 sec phi = mu_0/4 pi [2 I_1 A_1 V_1/(Z^2 + R_1^2)^3/2] A_2 \r\n = 10^- 7 times [2 times 6 times pi times 0.07^2 times 535/((0.18)^2 + (0.07)^2)^3/2] pi times 0.03^2 = 388 times 10^- 6 T m^2 emf = (9.68 times 10^- 6/0.4) - (388 times 10^- 6/0.4) = 1.45 times 10^- 5 V Delta V = 225 times 1.45 times 10^- 5 = 3.26 times 10^- 3 V E = 3.26 times 10^- 3/225 times 2 pi times 0.03 = 7.69 times 10^- 5 V/m