Question: A field is expressed in spherical coordinates by E = aR ( 2 5 / R ^ 2 } ) . a ) Find |

A field is expressed in spherical coordinates by E = aR (25/R^2}). a) Find |E| and Ex at the point P(-3,4,-5). b) Find the angle that E makes with the vector B = a x2- ay2+ az at point P.

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