View Policies Current Attempt in Progress The figure shows two closed paths wrapped around two conducting loops carrying currents i1 = 6.8 A and i2 = 3.1 A. What is the value of the integral O B d s for (a) path 1 and (b) path 2? DI D2 (a) Number Units V (b) Number Units V Question 11 of13 /8 E S View Policies Current Attempt in Progress A solenoid that is 108 cm long has a radius of 2.42 cm and a winding of 1690 turns; it carries a current of 3.04 A. Calculate the magnitude of the magnetic eld inside the solenoid. Number a Units v Question 12 of'l3 / 8 E View Policies Current Attempt in Progress A student makes a short electromagnet by winding 300 turns of wire around a wooden cylinder of diameter d = 3.2 cm. The coil is connected to a battery producing a current of 4.7 A in the wire. (a) What is the magnitude of the magnetic dipole moment of this device? (b) At what axial distance 2 > > d will the magnetic eld have the magnitude 5.4 pT (approximately one-tenth that of Earth's magnetic eld)? (a) Number n Units v (b) Number a Units v