QI) Find the magnetic field intensity at point (0,0,0) for each of the following fiures: 1) As in figure 1, two infinite filament of currents of 4A in opposite directions at x=0, y= -2 and x=0, y=2. 2) A ring of current of 10A at z-3 plane with its center at z axis and sheet of current of K=3az A/m at x-6 as shown in figure 2 (0,0.3 1-4A -4A -10A -y y figure 2 figure I Q2) Evaluate each side of Stokes theorem for a portion of cylinder : p-2m ,0<0<1/3, 1

QI) Find the magnetic field intensity at point (0,0,0) for each of the following fiures: 1) As in figure 1, two infinite filament of currents of 4A in opposite directions at x=0, y= -2 and x=0, y=2. 2) A ring of current of 10A at z-3 plane with its center at z axis and sheet of current of K=3az A/m at x-6 as shown in figure 2 (0,0.3 1-4A -4A -10A -y y figure 2 figure I Q2) Evaluate each side of Stokes theorem for a portion of cylinder : p-2m ,0<0<1/3, 1

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 12.3CYU: 12.3 Check Your Understanding Using Example 12.3, keeping the currents the same in wires 1 and 3,...

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

QI) Find the magnetic field intensity at point (0,0,0) for each of the following fiures:
1) As in figure 1, two infinite filament of currents of 4A in opposite directions at x=0, y= -2
and x-0, y-2.
2) A ring of current of 10A at z-3 plane with its center at z axis and sheet of current of
K=3az A/m at x=6 as shown in figure 2
(0,0,3)
1-4A
1-4A
1 1
figure 2
figure I
Q2) Evaluate each side of Stokes theorem for a portion of cylinder : p-2m
,0<0Sn/3, l<z<2
H= I z /2rp a d.
Q3) ) Find the current density at point (1,2,1) if the magnetic vector potentoil A is:
А-2yz ax - 3хay +2хaz W/m
x =0, y=-2
x =0, y=+2

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