- #1
thomsonm
- 13
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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?
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?