Modern trains are based on Maglev technology in which trains are magnetically levitated, which runs its...
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Modern trains are based on Maglev technology in which trains are magnetically levitated, which runs its EDS Maglev system. There are coils on both sides of wheels. Due to motion of train, current induces in the coil of track which levitates it. This is in accordance with Lenz's law. If trains lower down then due to Lenz's law a repulsive force increases due to which train gets uplifted and if it goes much high then there is a net downward force disc to gravity. The advantage of Maglev train is that there is no friction between the train and the track, thereby reducing power consumption and enabling the train to attain very high speeds. Disadvantages of Maglev train is that as it slows down the electromagnetic forces decreases and it becomes difficult to keep it levitated and as it moves forward according to Lenz law there is an electromagnetic drag force. Which force causes the train to elevate up? Electrostatic force (A) (B) Time varying electric field (C) Magnetic force (D) Induced electric field Modern trains are based on Maglev technology in which trains are magnetically levitated, which runs its EDS Maglev system. There are coils on both sides of wheels. Due to motion of train, current induces in the coil of track which levitates it. This is in accordance with Lenz's law. If trains lower down then due to Lenz's law a repulsive force increases due to which train gets uplifted and if it goes much high then there is a net downward force disc to gravity. The advantage of Maglev train is that there is no friction between the train and the track, thereby reducing power consumption and enabling the train to attain very high speeds. Disadvantages of Maglev train is that as it slows down the electromagnetic forces decreases and it becomes difficult to keep it levitated and as it moves forward according to Lenz law there is an electromagnetic drag force. Which force causes the train to elevate up? Electrostatic force (A) (B) Time varying electric field (C) Magnetic force (D) Induced electric field
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Project management the managerial process
ISBN: 978-0073403342
5th edition
Authors: Eric W Larson, Clifford F. Gray
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