A long straight wire in air carries a current of 5 A. What is the magnitude ofthe magnetic field density B at a radial distance of 2.5 m from the wire?Q1(a)(b)Given the electric flux density D= î xy°z³ C/m², determine:(i)The volume charge density, p, .(ii)Using i) above, determine the total charge Q enclosed in a cube 2 mon a side, located in the first octant with three of its sides coincidentwith the x-, y- and z-axes and one of its corners at the origin(iii)The total charge Q in the cube, obtained by applying Q=OD dS,where dS is the elemental surface area.A circular-loop TV antenna with 0.01 m? area is in the presence of a uniform-

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(a) A long straight wire in air carries a current of 5 A. What is the magnitude of the magnetic field density B at a radial distance of 2.5 m from the wire?