1.198 (a) Express the field D = (x² + y²)-'(xa, + ya,) in cylindrical components and cylindrical variables. (b) Evaluate D at the point where p = 2, o = 0.27, and z = 5, expressing the result in...

Extracted text: 1.198 (a) Express the field D = (x² + y²)-'(xa, + ya,) in cylindrical components and cylindrical variables. (b) Evaluate D at the point where p = 2, o = 0.27, and z = 5, expressing the result in cylindrical and rectangular components.