I would like to test what will happen If I put a high resistor between 220V AC terminals. My calculations says that it is possible, but I asked this question to know the practical point of view before testing it.
I = 220 / 500k = 0.44 mA
P = I * V = 0.44 * 220 = 96.8 mW
If the maximum power that a resistor can handle is 0.125 watt so, the previous calculations allows me to do this experiment. Is that right?
If the max. power of my resistor is 0.125 watt and I need to apply 0.25 watt to it, Can I use two series resistors?
One more thing, Can I calculate the input impedance of a circuit and then connect a suitable resistor in series to the circuit so that I no longer need a transformer? I know that it is too dangerous but is it possible?