Web1. The actual loop current is the summation of currents, and you can also have influence of currents from a nearby mesh. So If there is a shared branch between two meshes, say a resistor, then I_R = I1 + I2 , where I1 and I2 are the individual loop currents, which may be positive or negative, and probably produced by a current source or ... WebSep 12, 2024 · As discussed in the previous chapter, the closed current loop is a magnetic dipole of moment →μ = IAˆn. For this example, A = πR2 and ˆn = ˆj, so the magnetic field at P can also be written as →B = μ0μˆj 2π(y2 + R2)3 / 2. By setting y = 0 in Equation 12.5.4, we obtain the magnetic field at the center of the loop: Note →B = μ0I 2Rˆj.
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Why does current flow only in closed circuits? - Quora
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