27. Resistors & DC Circuits
Resistors and Ohm's Law
3:59 minutes
Problem 25.21a
Textbook Question
Textbook Question(II) A rectangular solid made of carbon has sides of lengths 1.0 cm, 2.0 cm, and 4.0 cm, lying along the x, y, and z axes, respectively (Fig. 25–36). Determine the resistance for current that passes through the solid in
(a) the x direction (Assume the resistivity is ρ = 3.0 x 10⁻⁵ Ω•m) ,
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