I have a couple of nitrous solenoids I am trying to figure out the amp draw on. Is there any reason not to use the formula of V/R=A?

I checked resistance with my DVM and get Nitrous: .06 ohms, Fuel: 4.8 ohms, Purge: 1.5 ohms.

Using these numbers in the formula of V/R=A

At 12 volts I get... Nitrous: 30 amps, Fuel: 2.5 amps, Purge: 8 amps

At 13.5 volts I get... Nitrous: 34 amps, Fuel: 2.8 amps, Purge: 9 amps

I did email the manufacturer and got... 30 amps for nitrous, 15 for purge, and 4 for fuel.

It seems the formula works in this case, but does it truly apply with a solenoid?