So the magnetic field strength increases linearly with both the number of turns and the voltage. The resistance of a wire is given by. $$ R = \rho \frac{l}{A}, $$. (where $\rho$ is some material property of the wire, $A$ is the cross sectional area and $l$ is the length) so that $LR = \rho Ll/A$ and.he number of turns can also increase the inductance of the coil and hence may lead to impedance, which also adds up with the resistance. Hence, I suggest the use of soft iron core, increase the current and voltage input, use a wire with low specific resistivity $\rho$ like silver or aluminum.
Below is a list of toll free 800 numbers for Con Ed. Customer Service, Emergencies: 1-800-75-CONED (1-800-752-6633) Phone Menu Transcription: If you call the number above you will get the options below. Thank you for calling Con Edison. to continue in English press 1,(this service is also available in Spanish)
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