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The spherical equivalent of the vector B = yi + (x + z)j located at (-2,6,3) is given by

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The spherical equivalent of the vector B = yi + (x + z)j located at (-2,6,3) is given by

(a) (7,64.62,71.57)

(b) (7,-64.62,-71.57)

(c) (7,-64.62,71.57)

(d) (7,64.62,-71.57)

This question was posed to me in class test.

Asked question is from Cartesian Coordinate System in division Coordinate Systems and Transforms of Electromagnetic Theory

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Right choice is (d) (7,64.62,-71.57)

Explanation: Substitute the points in the vector and convert the Cartesian to cylindrical form to get radius as 7, plane angle1 as 64.62 and plane angle2 as -71.57.

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