Example 7.10. A short solenoid (length / and radius a, with ₁ turns per unit length) lies on the axis of a very long solenoid (radius b, n₂ turns per unit length) as shown in Fig. 7.32. Current I flows in the short solenoid. What is the flux through the long solenoid?

Awire with current i= 3.06 A is shown in the figure. wo semi-infinite straight seCions, both tangent to the same circlewith radius 3.52 cm, are connected by a dircular arc that has acentral angle andruns along the circumference of the circle. The connecting arc and the two straight sections aWlie in the same plane. f B= 0 at thye center of the CArcle whatsR Number units degrees

Biot-Savart’ s Law.  2. Line x = O, y = 0, 0 ¡ z ¡ 10 m carries current 2 A along az. Calculate H at points:(a) (5,5,0)(b)  (5,15,0)(c) (5,-15,0)

Consider the seven current-carrying wires and the four closed paths shown in the figure. For each of these paths (C1, C2, C3, and C4) determine the following in terms of ?0. Use standard sign convention for the currents; minus is down into the page and positive is up out of the page. (Assume I1 = 2.00 A, I2 = 2.00 A, I3 = 5.00 A, I4 = 6.00 A, I5 = 5.00 A, I6 = 6.00 A, and I7 = 7.00 A.)