The cross section of a nlong cable that has an inner wire of radius R nsurrounded by a conducting sheath

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Previous Question: Two long, straight wires are parallel to and equidistant from the y-axis, as shown in figure (i). Each carries current I in opposite directions, resulting in a magnetic field of magnitude B0 at the origin. If the wires are each bent into right angles and placed as shown in figure (ii), what is the magnitude of the magnetic field at the origin Next Question: Two concentric metal spheres X and Y X carries a positive charge, and Y is connected to ground. True statements include which of the following ? I. The electric field inside X is zero II. The electric field outside Y is zero III. The charge density on both spheres is the same (A) I only (B) III only (C) I and II only (D) II and III only

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the cross section of a
long cable that has an inner wire of radius R
surrounded by a conducting sheath of outer
radius 2R. The wire and the sheath carry currents
in opposite directions but with the same uniform
current density J. What is the magnitude of the
magnetic field at the surface of the outer
conductor ?: Asked In AIEEE MAN (10 years ago); Unsolved; Is this Puzzle helpful? (0) (0) Submit Your Solution

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Latest AIEEE Aptitude Question SOLUTION: the cross section of a long cable that has an inner wire of radius R surrounded by a conducting sheath of outer radius 2R. The wire and the sheath carry currents in opposite di

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