Alternating current changes the orientation of the electromagnetic field by rapidly switching directions, helps to demagnetization.
<h3 /><h3>What is the process of Demagnetization by AC current?</h3>
Alternating current changes the orientation of the electromagnetic field by rapidly switching directions.
Because providing an electrical field (electromagnet) is one technique to create a magnet, it stands to reason that you can use alternating current to remove magnetism as well.
To do this, an alternating current (AC) current is sent through a solenoid. Begin with a greater current and gradually lower it until it is zero.
The magnetic dipoles strive to position themselves according to the field, but because it changes, they become randomized. Due to hysteresis, the material's core may retain a modest magnetic field.
Hence, alternating current changes the orientation of the electromagnetic field by rapidly switching directions, helps to demagnetization.
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Answer:
A.
Explanation:
Im just guessing because it sounds like it describes a hypothesis the most and you said its urgent
Answer:
The magnitude and direction of the total acceleration is 34.941m/s² upward
Explanation:
The centripetal acceleration due to the circular motion, is calculated as follows;
where;
a is the centripetal acceleration
v is the speed of the satellite = 810 m/s
r is the radius of the circular orbit = 66000 m
Upward acceleration = 25m/s²
Total acceleration = (9.941 + 25)m/s² = 34.941m/s² upward
Therefore, the magnitude and direction of the total acceleration is 34.941m/s² upward
Here,
height at failure, h1 = 525 m,
upward acceleration, a = 2.25 m/s^2,
velocity = v m/s,
<span>
SO, </span>
<span>
v^2 = 2*a*h = 2*2.25*525 = 2362.5 </span>
Now, acceleration, g = 9.8 m/s^2,
<span>
SO, </span>
<span>
heigt, h1 = v^2/2g = 2362.5 / 2*9.8 = 120.54 meters </span>
Hence,
<span>
a) </span>
Total height = 525+120.54 = 645.54 meters
b)
<span>time, for h1, t = v/g = sqrt(2362.5)/9.8 = 4.96 sec
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For example, an internal combustion engine converts<span> the </span>potential<span> chemical </span>energy <span>in gasoline and oxygen into </span>thermal energy<span> which, by causing pressure and performing work on the pistons, is </span>transformed<span> into the mechanical </span>energy<span> that accelerates the vehicle (increasing its kinetic </span>energy<span>).</span><span />
