As shown in figure "A" of the illustration, what phenomenon is illustrated with respect to electrical cables and ground? Illustration EL-0126
• How an insulated conductor and its metallic armor or surrounding ground can act like the two plates of a capacitor • The idea of electrical properties (like capacitance or inductance) being spread along the entire length of a cable instead of existing at one single point • The difference between capacitance (electric field between conductor and ground) and inductance (magnetic field around current-carrying conductors)
• Look at figure A and ask yourself: are they emphasizing an electric field through the insulation to ground, or a magnetic field around a current-carrying wire? • Is the effect shown located at one spot on the cable, or is it meant to represent something that exists all along the cable run? • Which word in the answer choices best matches the idea of a property that is built up from many tiny segments along a cable?
• Decide first whether the drawing in A is about electric field/voltage to ground (capacitance) or magnetic field/current (inductance). • Note that the insulation between the conductor and armor/ground is shown like a dielectric between two conductive bodies. • Match the idea of "spread along the length of the cable" with the correct term: associative vs distributive in the answer choices.
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