Lab210 - Magnetic Field of Helmholtz Coils

Lab210 - Magnetic Field of Helmholtz Coils - Samuel Dzifanu...

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Samuel Dzifanu Lab 212: Magnetic Field of Helmholtz Coils Lab 212 Magnetic Field of Helmholtz Coils Biot-Savart Law Name: Samuel Dzifanu Objective: To study the effects of two opposing magnetic fields that are produced by electromagnetic Helmoltz coils, and how it changes as the distance between the coils and the distance from the sensor. Theory: Helmholtz coils are a pair of coils that each has the same radius, R. The coils are placed parallel to each other a distance R apart and along the same axis. The magnetic field along the axis at the midpoint between the two coils is then given by = = + B µoIRsinθ2r2 µoNIR22R2 x232 where µo = 4π x 10^-7 (tesla•meters)/amp, I is the current (amps) in one coil, R is the radius of the coil, and N is the number of turns of wire in one coil. Procedure: The experiment consists of us moving the two coils and then taking the reading that the Vernier magnetic field sensor sends to the computer. The coils are set up with the magnetic fields pointing in the same direction as each other and a constant current, radius and number of
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Lab210 - Magnetic Field of Helmholtz Coils - Samuel Dzifanu...

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