The line that draws power supply to your house from the street has
(a) | zero average current |
(b) | 220 V average voltage |
(c) | voltage and current out of phase by \(90^\circ\) |
(d) | voltage and current possibly differing in phase \(\phi\) such that \(|\phi|<\dfrac \pi 2\) |
Choose the correct options:
1. (b), (c)
2. (a), (d)
3. (b), (d)
4. (a), (c)