Yes, there is a fluctuation of voltage in a moving train
A: Due to undesirable external voltage changes like the AC line dropping out occasionally the DC or input signal will become a variable voltage that is referred as voltage fluctuation but it can refers to all kinds of these kind of problems.
surely , voltage fluctuation Heat
to convert AC into DC voltage without fluctuation
Changes in load results in fluctuations. Fault also results in fluctuation
Fluctuation in voltage of current and excessive heat
A price fluctuation is a change in the price market.
Yes if the train is moving forward, you are moving at the train speed + walking speed relative to the tracks.
noise
Because there's no such thing as "really" stationary or "really" moving. If the distance between a point on one train and a point on the other train is changing, then a person on either train says that the other train is moving, and both of them are correct. A "stationary" train only appears to be moving if the train you're on is moving relative to that one.
The acceptable range of ac voltage at an outlet is from 115 to 120 volts. The utility company has a mandate to keep the voltage within a 10% fluctuation range. The catch is 10% from what set point voltage.
The generator's voltage regulator will sense the fluctuation. If the voltage goes low more current will be applied to the armature to compensate. If the voltage goes high less current will be applied to the armature to compensate.
the person standing on the ground, the train is moving and the ground is stationary. but the person on the train looks he is stationary and the ground is moving.