`(i)` When an `AC` source is connected to an ideal inductor show that the average power
Channel: Doubtnut
Date: 2020-01-19

`(i)` When an `AC` source is connected to an ideal inductor show that the average power supplied by the source ever a complete cycle is zero. `(ii)` A lamp is connected in series with an inductor and an `AC` source. What happens to the brightness of the lamp when the key is plugged in and an iron rod is inserted the indcutor ? Explain.