Chapter 3 - Vectors and Coordinates Systems - Exercises and Problems: 3

(a) $E_x = E~sin(\theta)$ $E_y = -E~cos(\theta)$ (b) $E_x = E~cos(\phi)$ $E_y = -E~sin(\phi)$

Work Step by Step

The x-component is the component of the vector which is directed along the x-axis. The y-component is the component of the vector which is directed along the y-axis. Therefore; (a) $E_x = E~sin(\theta)$ $E_y = -E~cos(\theta)$ (b) $E_x = E~cos(\phi)$ $E_y = -E~sin(\phi)$

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