# Solved Problems-5

Problem-5
Express the field , in cylindrical coordinates, and calculate at the point P (r = 2, Ï† = 60Â°z = 3).
Solution
In the cylindrical system,

But,

Substituting these values,

Hence, the vector in Cartesian coordinates is written as,

At P (r = 2, Ï† = 60Â°z = 3), the vector is given as,

Hence, at P

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