The longer the wire, the greater the resistance.The thicker the wire, the less the resistance.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 ...
A resistor whose resistance depends on the intensity of the light incident on it. Direct Current Electric current in a circuit that is in one direction only. Alternating Current Electric current in a circuit that repeatedly reverses its direction. Live Wire The mains wire that has a voltage ...
The fair testing emphasis means that pupils all over the country are finding out what affects the rate of a chemical reaction, the rate of photosynthesis or, in the case of Physics, the resistance of a wire. This book focuses on nine of the most common Sc1 investigations and how to ...
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...
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 ...