hi please help me with this sample solution given below

13 A long, straight conductor carries a 1.0-A current. At what distance from the axis of the conductor does the resulting magnetic field have magnitude B = 0.5 x 101{-4} T? * (2 Points) 1 mm O 2 mm O 3 mm O 4 mm10 An electron experiences a magnetic force of magnitude 5.60 x 101-15} N when moving at an angle of 60.0 with respect to a magnetic field of magnitude 3.50 x 10^{-3} T. Find the speed of the electron. * (2 Points) 11,547,005.38 N/T 1.15 x 101-37) m/s 11,547,005.38 m/s O 1.15 x 101{-37} N/TI= 50 A B= 1. 20T Example () = 450) 1 = 7.00 m A straight horizontal copper rod carries a current of 50.0 A from west to east in a region between the poles of a large B - 1.20 T N electromagnet. In this region there is a horizontal magnetic I -50.0 A field toward the northeast (that is, 45* north of east) with 45 2 W -1.00 m - E magnitude 1.20 T. Find the magnitude and direction of the force on a 1.00-m section of rod. 5 F = Il Bsino = (60A ) ( 1.00m) (1, 207) sin 45 F = 42. 43 NA coil consisting of 100 circular loops with radius 0.60 m carries a 5.0-A current. Find the magnetic field at a point along the axis of the coil. 0.80 m from the center. * (2 Points) 0 2.0x10\"{-4}T Q 1.1x10\"{-4}T Q 1.5x10\"{-4}T Q 5.20 1:: 1011-4} T A beam of protons (q = 1.6 x 10-19 C) moves at 3.0 x 105 m/s through a uniform 2.0-T magnetic field directed along the positive z-axis. The velocity of each proton lies in the xz-plane and is directed at 30 to the +z-axis. Find the force on a proton. B F = QVBsine N ( 2T ) sin 30 0 # F F = 4. 8 X 10- 14 NA horizontal rectangular surface has dimensions 2.80 cm by 3.20 cm and is in a uniform magnetic field that is directed at an angle of 30.0\" above the horizontal. What must the magnitude of the magnetic eld be to produce a ux of 0.210 me through the surface? * (2 Points) 0 4.69 x 1011-5} T Q 2.7x10*{-5}T A magnetron in a microwave oven emits electromagnetic waves with frequency f = 2450 MHZ. What magnetic field strength is required for electrons to move in circular paths with this frequency? * (2 Points) 0 0.0877T O 2450 T A flat surface with area 3.0 cm\" is in a uniform magnetic field E. The magnetic flux through this surface is +0.91? me. Find the magnitude of the magnetic field