The resistance of a 220 V 100 W incandescent lamp at room temperature is 40 ohm. What is the electric power at the moment of switching on

The resistance of a 220 V 100 W incandescent lamp at room temperature is 40 ohm. What is the electric power at the moment of switching on

It is true that the power at the moment when the lamp is turned on is up to kilowatt, but with the rise of filament temperature, it will soon drop to about 100W. Because of this, incandescent lamps are often damaged at the moment when the lamp is turned on

A fuse with a rated current of 5A is installed in the home circuit. How many "220 V, 60 W" lamps can be installed in this circuit at most?

Rated power: P = UI = 220 * 5 = 1100W, number of loadable lamps: 1100 / 60 = 18