Current and Resistance Problem 18: Consider two wires made of different materials. Wire A has a conductivity of 1.9 × 107 Ω-1m-1, and wire B has a conductivity of 8.5 × 107 Ω-1m-1. Part (a) Wire A has a circular cross-section with radius 2.74 mm. If there is an electric field of 0.059 V/m inside it, how much current, in amperes, is flowing through it? Part (b) Wire B has a square 2.74 mm × 2.74 mm cross-section. If wire B has the same electric field as Wire A did in part (a), what current, in amperes, would be passing through it?
Current and Resistance Problem 18: Consider two wires made of different materials. Wire A has a conductivity of 1.9 × 107 Ω-1m-1, and wire B has a conductivity of 8.5 × 107 Ω-1m-1. Part (a) Wire A has a circular cross-section with radius 2.74 mm. If there is an electric field of 0.059 V/m inside it, how much current, in amperes, is flowing through it? Part (b) Wire B has a square 2.74 mm × 2.74 mm cross-section. If wire B has the same electric field as Wire A did in part (a), what current, in amperes, would be passing through it?
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Current and Resistance
Problem 18: Consider two wires made of different materials. Wire A has a
Part (a) Wire A has a circular cross-section with radius 2.74 mm. If there is an electric field of 0.059 V/m inside it, how much current, in amperes, is flowing through it?
Part (b) Wire B has a square 2.74 mm × 2.74 mm cross-section. If wire B has the same electric field as Wire A did in part (a), what current, in amperes, would be passing through it?
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