Practicing Success
Which of the following trigonometric functions does the electric supply at our homes vary as?
|
Both 1 and 2 Both 1 and 3 Both 2 and 3 All 1, 2 and 3 |
Both 2 and 3 |
Electric supply at our homes is AC voltage. It is nothing but a sine wave signal of current. The difference between a sine and a cosine signal is only a phase shift of 90 degrees. |