A light-rail commuter train draws 630 A of 650-V DC electricity when accelerating. (a) What is its power consumption rate in kilowatts? (b) How long does it take to reach 20.0 m/s starting from rest if its loaded mass is 5.30×104 kg , assuming 95.0% efficiency and constant power? (c) Find its average acceleration. (d) Discuss how the acceleration you found for the light-rail train compares to what might be typical for an automobile.
Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.
A light-rail commuter train draws 630 A of 650-V DC electricity when accelerating.
(a) What is its power consumption rate in kilowatts?
(b) How long does it take to reach 20.0 m/s starting from rest if its loaded mass is 5.30×104 kg , assuming 95.0% efficiency and constant power?
(c) Find its average acceleration.
(d) Discuss how the acceleration you found for the light-rail train compares to what might be typical for an automobile.
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