I am trying to better understand oersted and amp per meter. I have done some research and from wiki founded 1 oersted = 1000/4π (≈79.5774715) ampere per meter. It then goes on to say, a wound with 79.58 turns per meter of a wire carrying 1 amp will be approximately 1 oersted. This is what got me confused is the unit amp times meter or amp divided by meter? Also I am confused as two what do you increase if you wanted to generate two oersted? Double the amperage or double the winding to 160 turns per meter? Lastly does the wire have to be 1 meter long to generate 1 Oe?
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Oersted is the measure of magnetic field intensity H and is equivalent to amps/meter
It is calculated from Ampere's Law
∫H• dl = NI where N is the number of turns, I is the current, dl is the differential of length
H = NI/( length* constant) so H is measured in amp turns per meter, the constant will vary with different path geometries.
Either doubling the current or doubling the windings per meter will double H
It is calculated from Ampere's Law
∫H• dl = NI where N is the number of turns, I is the current, dl is the differential of length
H = NI/( length* constant) so H is measured in amp turns per meter, the constant will vary with different path geometries.
Either doubling the current or doubling the windings per meter will double H