Question

pics

cant really figure these out

4. (25 pts.) Determine the magnetic field in all regions of space for this cable: Rz z. 2. (25 pts.) Determine the equivalent resistance of the setup in the pict Set up the equations for the currents in this circuit ее (o Phy 2049C (25 pts.) A current of 5 A is moving into this page. Determine the magnetic field it produces 3 m directly above it. Use i, j, and k to give its direction. 서

Answer 1

2.

allel 2 series 0-23R Series

i = current in the wire = 5 A

r = distance from the wire = 3 m

magnetic field by the wire is given as

B = ($\mu _{o}$/4$\pi$) (2i/r)

B = (10^-7) (2(5)/3)

B = 3.33 x 10^-7 T

Direction : positive x-direction or $\hat{i}$