60W / 220V AC incandescent lamp is connected with diodes in series, and then connected with 220V AC power supply, the power consumption is ()

60W / 220V AC incandescent lamp is connected with diodes in series, and then connected with 220V AC power supply, the power consumption is ()


About 15 W in theory



A bulb marked with "pz220-40" and a bulb marked with "pz220-100", if: (1) connect them in parallel with a 220 V power supply, which lamp is on


Its resistance is small and its rated power is high



If lamp L1 (pz220-25) and lamp L2 (pz220-60) are connected in parallel on the voltage of 220 V, then the lamp is on? Why? If they are connected in series on the voltage of 220 V, then the lamp is on? Why?


If lamp L1 (pz220-25) and lamp L2 (pz220-60) are connected in parallel on the voltage of 220 V, which lamp is on? Why?
L2 is on, because L1 and L2 work normally, L2 has high power, so L2 is on
If they are connected in series with the voltage of 220 V, the lamp will be on? Why?
When L1 is on, the current of series circuit is the same. Because L1 has high resistance, high voltage and high power, L1 is on