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EMAW-002 ohm, measured with the larger electrodes (with a cross-sectional area of 100 mm^2) compared to the smaller electrodes (with a cross-sectional area of 50 mm^2), is: To measure the resistance of a material, we place it in a circuit using two electrodes. The resistance (R) depends on the material's resistivity (ρ), its cross-sectional area (A), and the distance between the electrodes (L). The relationship is: [ R = frac{ ho imes L}{A} ] For the smaller electrodes, let's denote the resistance as R₁. For the larger electrodes, let's denote the resistance as R₂. Since the cross-sectional area of the larger electrodes is twice that of the smaller ones, the resistance measured with the larger electrodes is: [ R_2 = frac{ ho imes L}{2A} ] [ R_2 = frac{R₁}{2} ] Therefore, the resistance measured with the larger electrodes is half of that measured with the smaller electrodes. **Final Answer:** The resistance measured with the larger electrodes is half of that measured with the smaller electrodes.

2009年7月24日239 分