Physics > Lab Report > New York UniversityPHYS - UA PHYS-UA 11current balance. (All)

New York UniversityPHYS - UA PHYS-UA 11current balance.

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Aim The purpose of this experiment was to examine the magnetic field produced by one segment of a wire that carries current at all points in another wire to determine its relation with it. We proved... that a magnetic field is directly proportional to the current flowing in a wired. Theory A wire carrying a current will produce a magnetic field around it, represented by B. The magnetic field produces a distance r from a segment of a wire with length l, which points in the same direction as the current. Said current is calculated using the equation dB= μ0 4 π Idl x r r 2 , where r is the unit vector pointing from the the wire to the field point and μ0 is the vacuum permeability (constant). μ0 is always defined so that μ0 4 π from the equation equals to 10-7. Two wires that carry current and are close in distance experience forces caused by their magnetic fields. The force dF experienced by B is given by dF = IdlXB, in the case that a wire element dl with current I is in a magnetic field. The total force on the wire can be found by integrating this equation. The equation F= 2 μ0 4 π I A IB L D represents the magnitude of the force F between a length L of two thin infinitely long parallel wires and separated by distance D, where IA is the current of one wire, and IB is the current of the other. If the currents of both wires are in the same direction, the wires will experience attractive forces. Currents in opposite direction will cause the wired to experience repulsive forces. Procedures No deviation from lab manual. Data/Calculations Table 6.1: 1 ruler thickness, a = 1.0 mm [Show More]

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