A long, cylindrical conductor of radius R carries a current I as shown in the figure below. The current density J, however, is not uniform over the cross section of the conductor but is a function of the radius according to J = 4br2, where b is a constant.   a) r1 < R

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A: Net Magnetic field at point P is (8×10−6i^−8×10−6j^​)TExplanation:Step 1: Step 2: Step 3: Step 4:

Q: A long, cylindrical conductor of radius R carries a current I as shown in the figure below. The…

A: Given variable: Current density, J = 6br2  The radius of the conductor - R

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Q: A long, cylindrical conductor of radius R carries a current I as shown in the figure below. The…

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Q: Problem 9: An electric current is flowing through a long cylindrical conductor with radius a = 0.35…

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Q: current density through the cross section of the wires, greatest first.

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.