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10 cards from this deck
Conceptual, mathematical, numerical
Field strength (closer lines = stronger field)
Direction of force on north magnetic pole
Only one direction of force at any point
Small regions where electrons' magnetic fields align
B=μ0I2πrB = \frac{\mu_0 I}{2\pi r}B=2πrμ0I
B=μ0NILB = \frac{\mu_0 NI}{L}B=Lμ0NI
4π×10−74\pi \times 10^{-7}4π×10−7 T·m/A
Analytical: solve maths; Numerical: computer calculates values
Only accurate for very long wires, not near ends
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