L9-page7 - Voltage and Flow in Layers Tangent Law: The...

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7 Voltage and Flow in Layers Tangent Law: The electrical current is bent at a boundary i 1 i 2 dl 1 dl 2 dV 1 dV 2 a c θ 1 θ 2 ρ 1 ρ 2 Relations: Current: i 1 =i 2 Voltage: dV 1 =dV 2 Resistivity: ρ 1 > ρ 2 b ρ 2 1 = tan θ 1 tan 2 If ρ 2 < ρ 1 then the current lines will be refracted away from the normal If ρ 2 > ρ 1 then the current lines will be refracted closer to the normal Voltage and Flow in Layers
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This note was uploaded on 01/07/2012 for the course PHYSICS 384 taught by Professor Wei during the Spring '09 term at SUNY Stony Brook.

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