The greater the temperature, the less the resistance.∝ l ∝ 1/A R = K l/A K = ρ = resistivitySo, R = ρ l/AYou can see how above factors affect the resistance of a wire in the following animation - interactively.Definition of Resistivity - ρ...
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10.Describe qualitatively the motion of bodies falling in a uniform gravitational field with and without air resistance(including reference to terminal velocity). 定性的描述计和不计空气阻力物体在均匀重力场中下落的运动(包括设计到末速度。 1.3 Mass and weight质量和重量 1.Show familiarity with the idea...