The figure below is a cross-sectional view of a coaxial cable. The center conduc

Question

The figure below is a cross-sectional view of a coaxial cable. The center conductor is surrounded by a rubber layer, an outer conductor, and another rubber layer. In a particular application, the current in the inner conductor is I1 = 1.08 A out of the page and the current in the outer conductor is I2 = 3.06 A into the page. Assuming the distance d = 1.00 mm,answer the following.

A. why is the direction of the magnetic field at point a upwards? Explain thoroughly using right hand rule and how it cannot be in other directions.

Explanation / Answer

the magnetic field at point a is due to the current I1 only and but not due to I2. accoring to right hand rule thumb of the right hand is in the diection of current and curl of the fingers represents the directionn of the field. sp from right hand rule the field at point a is vertically upward.

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