Write the Vector V in the Form Ai + Bj $$\| \mathbf { v } \| = 15 , \alpha = 45 ^ { \circ }$$

question 140

Multiple Choice

Write the vector v in the form ai + bj, given its magnitude v and the angle  it makes with the positive x-axis.
- $$\| \mathbf { v } \| = 15 , \alpha = 45 ^ { \circ }$$

• A) \(\mathbf { v } = 15 \left( \frac { 15 \sqrt { 3 } } { 2 } \mathbf { i } + \frac { 15 } { 2 } \mathbf { j } \right)\)
• B) \(\mathbf { v } = 15 \left( \frac { 15 } { 2 } \mathrm { i } + \frac { 15 \sqrt { 3 } } { 2 } \mathrm { j } \right)\)
• C) \(v = 15 \left( - \frac { \sqrt { 2 } } { 2 } i - \frac { \sqrt { 2 } } { 2 } j \right)\)
• D) \(\mathbf { v } = 15 \left( \frac { \sqrt { 2 } } { 2 } \mathrm { i } + \frac { \sqrt { 2 } } { 2 } \mathrm { j } \right)\)

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Stator

The stationary windings of wire in an AC generator. Stator windings occur in two different configurations, the wye winding and the delta winding.

Windings

Coils of wire, typically copper, wound around a core or form, used in electrical machines and devices to generate magnetic fields or induce voltages.