purifier
Full Member level 4
filament bulb in ac
Suppose there is a 100W bulb... I connect it to a bulb socket... What happens? DC Voltage is required for it to glow right? Or can AC make it glow? If DC is required, then how is the AC converted to DC? I am sure that the bulb cannot contain a transformer... How does it achieve this AC->DC conversion?
If i am on the wrong side of thinking, please correct me... And kindly tell me how these small devices are made to work on the 22V supply... Do they step down the voltage and how do they achieve that?
Suppose there is a 100W bulb... I connect it to a bulb socket... What happens? DC Voltage is required for it to glow right? Or can AC make it glow? If DC is required, then how is the AC converted to DC? I am sure that the bulb cannot contain a transformer... How does it achieve this AC->DC conversion?
If i am on the wrong side of thinking, please correct me... And kindly tell me how these small devices are made to work on the 22V supply... Do they step down the voltage and how do they achieve that?