What is the ohm of resistance 5W r015j?

What is the ohm of resistance 5W r015j?

This is the digital marking method in the parameter marking method of resistor in circuit, mainly used for small volume resistor such as patch
R is 0, so R015 is 0.015 Ω and j is plus or minus 5%

The resistance of a bulb is 100 ohm. When using the home circuit power supply, a 120 ohm constant resistance must be connected in series to work normally
How much is the voltage at both ends of the bulb when it works normally? Can you help me

The voltage of the home circuit is 220 V, so the current in the circuit is: I = u / r = 220 V △ (100 Ω + 120 Ω) = 1a, and the voltage at both ends of the lamp is: u = IR = 1a × 100 Ω = 100 v

There is a lamp with a current of 0.5A and a resistance of 8 Ω when it works normally. To connect it to a circuit with a voltage of 12V, how large a resistor needs to be connected in series to make the lamp work
Is it 16 Ω

16 Ω. To ensure the current of the lamp is 0.5. So the total resistance of the circuit should be 12 / 0.5 = 24 Ω. So 16 Ω should be connected in series