A cylinder-shaped carbon resistor is 8 cm in length and its circular cross section has a diameter d = 1 mm. Determine the resistance ft. To reduce its resistance by 40%, the carbon resistor is coated with a layer of copper of thickness t. Use the result of Problem to determine coaxial resistor of length / consists of two concentric cylinders. The inner cylinder has radius a and is made of a material with conductivity, sigma 1 and a the outer cylinder, extending between r = a and r – b, is made of a material with conductivity an. If the two ends of the resistor are capped with conducting plates, show that the resistance between the two ends is R = 1/[pi (sigma 1a2 + sigma 2(b2 -a2)].

19 2 - A cylinder-shaped carbon resistor is 8 cm in length and its circular cross section has a diameter d = 1 mm. Determine the resistance ft. To reduce its resistance by 40%, the carbon resistor is coated with a layer of copper of thickness t. Use the result of Problem to determine coaxial resistor of length / consists of two concentric cylinders. The inner cylinder has radius a and is made of a material with conductivity, sigma 1 and a the outer cylinder, extending between r = a and r - b, is made of a material with conductivity an. If the two ends of the resistor are capped with conducting plates, show that the resistance between the two ends is R = 1/[pi (sigma 1a2 + sigma 2(b2 -a2)].

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images - A cylinder-shaped carbon resistor is 8 cm in length and its circular cross section has a diameter d = 1 mm. Determine the resistance ft. To reduce its resistance by 40%, the carbon resistor is coated with a layer of copper of thickness t. Use the result of Problem to determine coaxial resistor of length / consists of two concentric cylinders. The inner cylinder has radius a and is made of a material with conductivity, sigma 1 and a the outer cylinder, extending between r = a and r - b, is made of a material with conductivity an. If the two ends of the resistor are capped with conducting plates, show that the resistance between the two ends is R = 1/[pi (sigma 1a2 + sigma 2(b2 -a2)].

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