I.12.1 Vector Field Circulation

Condition: Calculate the circulation of the vector field \ (\ bar {a} \) through the closed circuit \ (\ gamma \), set parametrically: \ [\ bar {a} = y I-x j+z k \] \ [[ \ Gamma: \ Left \ {\ Begin {Array} {C} X = \ COS T, Y = \ SIN T \\ Z = 3 \ END {Array} \ QUAD T \ In [0; 2 \ Pi]. \ Right. \]