Is my solenoid's resistance too low?

[thomsonm]

I've just calculated the resistance of a solenoid I'm making, but it seems far too low.

240 turns of 1.6mm wire, 30 turns per row, 8 rows deep.

total length of wire (L) = 21.96m
area of wire (A) = pi * (0.0008)^2 m^2
resistivity of copper (rho) = 1.6*10^-8 ohms m^-1

R = (rho * L) / A
R = 0.175

Is the resistance of my solenoid really only 0.175ohms?

 

[Evil Bunny]

There will initially be some inductive reactance as well...

 

[Averagesupernova]

How 'low' the resistance of something is really doesn't mean anything. Someone once asked me how low of a resistance you could get 'before it shorts out'. A meaningless question. If the wire size you have chosen will handle the current you end up putting through there without burning up then you are fine. So what kind of current do you expect to put through the solenoid?

 

[thomsonm]

I'm need 10A to get the right magnetic field.

 

[sophiecentaur]

Ideally, an inductor would have zero resistance.
To supply a solenoid satisfactorily you tend to need an unusual sort of power supply - low voltage and loads of current available.